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DFARS Specialty Metals
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Manufacturer/Brand Equivalent
Hardness Rating
Bore-Sealing Spring-Loaded Rotary Shaft Seals with Wiper Lip
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Side 1 | Side 2 | Profile |
Ribbed Buna-N over steel creates a tight seal with the bore, even when mating with a rough surface or in a split housing. Also known as oil seals, these retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. They have a secondary lip that blocks contaminants and a spring that secures the sealing-lip to prevent leaks. Press-fit seals into the bore around the shaft. Seals with a maximum pressure of 145 psi should be secured with a retaining ring.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Seal | For Bore | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Shaft Dia. | ID | OD | Wd. | Dia. | Min.Wd. | Max. Rotation Speed, rpm | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Buna-N with Steel Core and Steel Spring | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.250" | 0.250" | 1.250" | 0.262" | 6,000 | 7 | -40 to 212 | Durometer 70A (Hard) | Black | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
High-Speed Rotary Shaft Seals
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Side 1 | Side 2 | Profile |
A slippery PTFE surface allows these seals to function at speeds at least 25% faster than other rotary shaft seals. Also known as oil seals, use these to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. An O-ring secures the lips to prevent leaks, while sealing against the housing. Press-fit seals into the bore around the shaft.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Seal | For Bore | O-Ring | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Shaft Dia. | ID | OD | Wd. | Dia. | Min.Wd. | Max. Rotation Speed, rpm | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Hardness | Color | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Graphite Filled PTFE with Buna-N O-Ring | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.250" | 0.313" | 1.250" | 0.323" | 25,500 | 150 | -40 to 250 | Durometer 60D (Extra Hard) | Black | Durometer 70A (Hard) | Black | 0000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Spring-Loaded Rotary Shaft Seals with Wiper Lip
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Side 1 | Side 2 | Profile |
Used to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes, these seals have a secondary lip that blocks contaminants. Also known as oil seals, a spring secures the lip against the shaft, preventing messy leaks. Press-fit seals into the bore around the shaft. Seals with a maximum pressure of 50 psi should be secured with a retaining ring.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Acrylic-Coated Case—Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.
Seal | For Bore | Case | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Shaft Dia. | ID | OD | Wd. | Dia. | Min.Wd. | Max. Rotation Speed, rpm | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Finish | Color | Specs. Met | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Buna-N with Steel Case and Steel Spring | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.250" | 0.250" | 1.250" | 0.266" | 3,900 | 50 | -40 to 210 | Durometer 80A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 0000000 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.250" | 0.250" | 1.250" | 0.272" | 3,900 | 10 | -40 to 210 | Durometer 80A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 0000000 | 0000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.375" | 0.250" | 1.375" | 0.266" | 3,900 | 10 | -40 to 210 | Durometer 80A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 00000000 | 0000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.499" | 0.250" | 1.499" | 0.266" | 3,900 | 10 | -40 to 210 | Durometer 80A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 00000000 | 0000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.624" | 0.250" | 1.624" | 0.266" | 3,900 | 10 | -40 to 210 | Durometer 80A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 00000000 | 0000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Rotary Shaft Seals for Grease
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Side 1 | Side 2 | Profile |
Also known as grease seals, these are designed to retain thick lubricant at low pressure in motors, pumps, bearings, and gearboxes. They have a light grip on the shaft that creates less friction than spring-loaded seals. Press-fit seals into the bore around the shaft.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Acrylic-Coated Case—Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.
Seal | For Bore | Case | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | ID | OD | Wd. | Dia. | Min.Wd. | Max. Rotation Speed, rpm | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Finish | Color | Specs. Met | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Buna-N with Steel Case | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.000" | 0.125" | 1.000" | 0.141" | 3,900 | 10 | -40 to 210 | Durometer 75A (Hard) | Black | — | — | DIN 3760, ISO 6194 | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.006" | 0.125" | 1.006" | 0.141" | 3,900 | 10 | -40 to 210 | Durometer 75A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 0000000 | 0000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.124" | 0.156" | 1.124" | 0.156" | 3,900 | 10 | -40 to 210 | Durometer 75A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 00000000 | 0000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.499" | 0.250" | 1.499" | 0.266" | 3,900 | 10 | -40 to 210 | Durometer 75A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 0000000 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Spring-Loaded Rotary Shaft Seals
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Side 1 | Side 2 | Profile |
Also known as oil seals, use these to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip against the shaft, preventing messy leaks. Press-fit seals into the bore around the shaft. Seals with a maximum pressure of 50 psi should be secured with a retaining ring.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Acrylic-Coated Case—Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.
Seal | For Bore | Case | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | ID | OD | Wd. | Dia. | Min.Wd. | Max. Rotation Speed, rpm | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Finish | Color | Specs. Met | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Buna-N with Steel Case and Steel Spring | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.124" | 0.188" | 1.124" | 0.204" | 3,900 | 10 | -40 to 210 | Durometer 75A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 0000000 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.375" | 0.250" | 1.375" | 0.266" | 3,900 | 10 | -40 to 210 | Durometer 75A (Hard) | Black | Acrylic Coated | Green | DIN 3760, ISO 6194 | 0000000 | 0000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Heavy Duty Shaft-Mounted Rotary Shaft Seals
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Side 1 | Side 2 | Profile |
These seals are fluoroelastomer, so they have excellent chemical resistance and withstand temperatures up to 390° F. Also known as V-rings and flingers, they protect shaft bearings by blocking dust and other contaminants while retaining lubricant. To install, stretch the seal over your shaft and press it firmly against the face plate.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For Shaft | Seal | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dia. | Dia. Range | For Faceplate Dia. | ID | OD | Wd. | Max. Rotation Speed, rpm | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fluoroelastomer | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.748" to 0.827" | 1.220" to 1.299" | 0.709" | 1.024" | 0.295" | 8,500 | 5 | 5 to 390 | Durometer 60A (Medium) | Brown | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Shaft-Mounted Rotary Shaft Seals
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Side 1 | Side 2 | Profile |
Also known as V-rings and flingers, these seals protect shaft bearings by blocking dust and other contaminants while retaining lubricant. They’re Buna-N for excellent resistance to oil and grease. To install, stretch the seal over your shaft and press it firmly against the faceplate. The Seal OD and Seal Width listed are the dimensions of the seal after it is installed.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For Shaft | Seal | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Dia. Range | For Faceplate Dia. | ID | OD | Wd. | Max. Rotation Speed, rpm | Max. Pressure, psi | Temp. Range, ° F | Hardness | Color | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Buna-N | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.690" to 0.770" | 1.290" to 1.370" | 0.635" | 1.359" | 0.375" | 9,600 | 100 | -20 to 225 | Durometer 85A (Hard) | Black | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mechanical Pump Shaft Seals with Compact Spring
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Built for small circulation and dispensing pumps, these seals have short springs. The spring-loaded design keeps the sealing surfaces in contact as the material wears. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.
Note: Maximum performance values cannot be achieved simultaneously. For example, speed is affected by pressure, temperature, and other operating conditions.
Buna-N Diaphragm—Buna-N diaphragms resist grease and a wide range of oils.
Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.
Buna-N Gasket—Buna-N gaskets resist grease and a wide range of oils.
Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.
Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
Seal | Seat | Material | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Mfr. Equiv. No. | Mfr./Brand Equiv. | ID | OD | Wd. | ID | OD | Wd. | Washer | Seat | Max. Pressure, psi | Cannot Be Sold To | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
304 Stainless Steel Case and 304 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 601 | John Crane Type 6A Pac-Seal Type 68 Sealol Type 6 | 0.750" | 1.575" | 0.615" | 0.780" | 1.375" | 0.406" | Phenolic | Ceramic | 75 | Outside North America | 00000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 601V | John Crane Type 6A Pac-Seal Type 68 Sealol Type 6 | 0.750" | 1.575" | 0.615" | 0.780" | 1.375" | 0.406" | Carbon | Ceramic | 75 | Outside North America | 00000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mechanical Pump Shaft Seals with Extended Spring
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Seal with Straight Spring |
 |
Seal with Retainer and Straight Spring |
For use in waste water, boiler feed, and compressor pumps, these seals have an extra-long spring that accommodates variations in seal cavity length. They come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Buna-N Diaphragm—Buna-N diaphragms resist grease and a wide range of oils.
EPDM Diaphragm—EPDM diaphragms are more resistant to water and steam than Buna-N and Viton® fluoroelastomer, but aren’t as resistant to oils and chemicals.
Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.
Buna-N Gasket—Buna-N gaskets resist grease and a wide range of oils.
Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.
Carbon Washer—Carbon washers are for use with clean liquids.
Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
Seal | Seat | Material | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Mfr. Equiv. No. | Mfr./Brand Equiv. | ID | OD | Wd. | ID | OD | Wd. | Washer | Seat | Spring Shape | Includes | Max. Pressure, psi | Cannot Be Sold To | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
304 Stainless Steel Case and 304 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 358 | John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short | 0.750" | 1.302" | 0.875" | 0.780" | 1.375" | 0.406" | Carbon | Ceramic | Straight | Spring Retainer | 250 | Outside North America | 00000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 107165 | John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short | 0.750" | 1.302" | 0.687" | 0.783" | 1.287" | 0.252" | Carbon | Ceramic | Straight | — | 250 | Outside North America | 00000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 358V, 750V | John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short | 0.750" | 1.302" | 0.875" | 0.780" | 1.375" | 0.406" | Carbon | Ceramic | Straight | Spring Retainer | 250 | Outside North America | 00000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 877V | John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short | 0.750" | 1.302" | 0.797" | 0.780" | 1.375" | 0.406" | Carbon | Ceramic | Straight | Spring Retainer | 250 | Outside North America | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
304 Stainless Steel Case and 304 Stainless Steel Spring with EPDM Diaphragm and EPDM Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 358E | John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short | 0.750" | 1.302" | 0.875" | 0.780" | 1.375" | 0.406" | Carbon | Ceramic | Straight | Spring Retainer | 250 | Outside North America | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Narrow-Profile Mechanical Pump Shaft Seals with Extended Spring
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With a smaller seal OD than standards seals, these seals have an extended spring that accommodates variations in seal cavity length. They're used in waste water, boiler feed, and compressor pumps. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
Seal | Seat | Material | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Shaft Dia. | Mfr. Equiv. No. | Mfr./Brand Equiv. | ID | OD | Wd. | ID | OD | Wd. | Washer | Seat | Max. Pressure, psi | Cannot Be Sold To | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
316 Stainless Steel Case and 316 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 275 | John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long | 0.750" | 1.199" | 1.312" | 0.780" | 1.375" | 0.406" | Carbon | Ceramic | 150 | Outside North America | 00000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Heavy Duty Mechanical Pump Shaft Seals
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Multiple internal springs ensure these seals keep the sealing surfaces in contact in demanding applications, such as agricultural, chemical, and mining pumps. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, springs, diaphragm, and washer, and the seat is comprised of the seat and the gasket. Seal Width represents the working height, which is the compressed length when installed.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
Seal | Seat | Material | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Shaft Dia. | Mfr./Brand Equiv. | ID | OD | Wd. | ID | OD | Wd. | Washer | Seat | Max. Pressure, psi | Cannot Be Sold To | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
316 Stainless Steel Case and 316 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | John Crane Type 8T Pac-Seal Type 8T | 0.750" | 1.187" | 0.937" | 0.781" | 1.375" | 0.406" | Carbon | Ceramic | 300 | Outside North America | 0000000 | 0000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Split Rotary Shaft Seals
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Side 1 | Side 2 | Profile |
Replace old seals without disassembling components—these seals come split for easy installation. Also known as clipper seals, they retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip to prevent leaks; fasten the hook and eye closure to secure. Press-fit seals into the housing bore; they fit tight for installation without a cover plate.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Seal | For Bore | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Shaft Dia. | ID | OD | Wd. | Dia. | Min.Wd. | Max. Rotation Speed, rpm | Max. Pressure | Temp. Range, ° F | Hardness | Color | Case Color | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Buna-N with Aramid Case and Stainless Steel Spring | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 0.750" | 1.250" | 0.312" | 1.250" | 0.313" | 10,200 | Not Rated | -20 to 250 | Durometer 75A (Hard) | Black | Black | 0000000 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mechanical Pump Shaft Seals
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Commonly used in well, sump, and displacement pumps, these seals have a two-piece spring-loaded design that keeps the sealing surfaces in contact as the material wears. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Buna-N Diaphragm—Buna-N diaphragms resist grease and a wide range of oils.
Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.
Buna-N Gasket—Buna-N gaskets resist grease and a wide range of oils.
Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.
Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
Seal | Seat | Material | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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For Shaft Dia. | Mfr. Equiv. No. | Mfr./Brand Equiv. | ID | OD | Wd. | ID | OD | Wd. | Washer | Seat | Max. Pressure, psi | Cannot Be Sold To | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
304 Stainless Steel Case and 304 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 101 | John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L | 0.750" | 1.300" | 0.812" | 0.780" | 1.437" | 0.406" | Phenolic | Ceramic | 150 | Outside North America | 00000000 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 851 | John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L | 0.750" | 1.312" | 0.718" | 0.780" | 1.375" | 0.406" | Carbon | Ceramic | 150 | Outside North America | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 201V, 851V | John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L | 0.750" | 1.300" | 0.718" | 0.780" | 1.375" | 0.406" | Phenolic | Ceramic | 150 | Outside North America | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 201VSC | John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L | 0.750" | 1.312" | 0.718" | 0.797" | 1.375" | 0.406" | Silicon Carbide | Silicon Carbide | 150 | Outside North America | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4" | 219V | John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L | 0.750" | 1.302" | 0.718" | 0.780" | 1.375" | 0.406" | Carbon | Ceramic | 150 | Outside North America | 0000000 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
