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About O-Rings
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Oil-Resistant Buna-N O-Ring Assortments
All of the O-rings in these assortments are made of Buna-N. They resist animal, vegetable, and motor oils. All have a round profile and are suitable for a wide range of static and dynamic sealing applications.
Inch O-rings have a dash number and are sized to the SAE standard AS568.
Metric O-rings are sized to the actual measured inside diameter.
The 1,110-piece assortment contains a mix of standard O-rings and O-rings for tube fittings with a straight-thread connection.
| Number of Pieces | Number of Sizes Included | Includes | Specifications Met | Temperature Range, °F | Each | |
Durometer 70A (Medium) | ||||||
|---|---|---|---|---|---|---|
Black | ||||||
| 200 | 12 | Dash Numbers 010-012, 110-116, 211-212 | ASTM D2000, SAE AS568 | -25° to 250° | 0000000 | 00000 |
| 380 | 36 | 1.9 mm wide o-rings (2.8, 3.8, 4.8, 5.8, 6.8, 7.8, 8.8, 9.8 mm IDs) 2.4 mm wide o-rings (9.8, 10.8, 11, 11.8, 12.8, 13.8, 14.8, 15.8, 17.8, 19.8, 20.8, 21.8 mm IDs) 3.1 mm wide o-rings (24.4, 29.4 mm IDs) 3.5 mm wide o-rings (21.7, 22.1, 23.7, 24.7, 25.2, 25.7, 27.7, 28.7, 29.2, 29.7, 30.7, 31.2 mm IDs) 4.0 mm wide o-rings (14.5, 23.5 mm IDs) | ASTM D2000, JIS B 2401 | -25° to 250° | 00000000 | 00000 |
| 382 | 30 | Dash Numbers 006-012, 110-116, 210-222, 325-327 | ASTM D2000, SAE AS568 | -25° to 250° | 0000000 | 00000 |
| 385 | 30 | 2.0 mm wide o-rings (3, 4, 5, 6, 7, 8, 10 mm IDs) 2.5 mm wide o-rings (10, 11, 12, 14, 16, 17, 19 mm IDs) 3.0 mm wide o-rings (19, 20, 22, 24, 25, 27, 28, 30, 32, 33, 35, 36, 38 mm IDs) 4.0 mm wide o-rings (38, 41, 44 mm IDs) | ASTM D2000 | -25° to 250° | 0000000 | 00000 |
| 436 | 36 | Dash Numbers 005-018, 110-121, 210-219 | ASTM D2000, SAE AS568 | -25° to 250° | 0000000 | 00000 |
| 500 | 36 | 1.5 mm wide o-rings (5, 13, 16 mm IDs) 1.6 mm wide o-rings (2.2, 3.1, 4.1, 7.1, 9.1, 10.1, 13.1 mm IDs) 2.0 mm wide o-rings (4, 6, 8, 9, 10, 12, 14, 16, 19, 20 mm IDs) 2.4 mm wide o-rings (4.3, 5.3, 5.6, 7.6, 8.3, 8.6 mm IDs) 2.5 mm wide o-rings (10, 13-19 mm IDs) 3.0 mm wide o-rings (9, 10, 11 mm IDs) | ASTM D2000 | -25° to 250° | 0000000 | 00000 |
| 611 | 37 | Dash Numbers 006-012, 110-116, 210-222, 325-334 | ASTM D2000, SAE AS568 | -25° to 250° | 0000000 | 000000 |
| 1,110 | 150 | Dash Numbers 001-046, 110-151, 210-237, 325-338, 901-914, 916, 918, 920, 924, 928, 932 | ASTM D2000, SAE AS568 | -25° to 250° | 0000000 | 000000 |
Oil-Resistant Hard Buna-N O-Ring Assortments
Offering better wear resistance than standard Buna-N O-rings, all of the O-rings in these assortments are made of hard Buna-N. They resist animal, vegetable, and motor oils. These O-rings have a round profile and are suitable for a wide range of static and dynamic sealing applications.
Inch O-rings have a dash number and are sized to the SAE standard AS568.
Metric O-rings are sized to the actual measured inside diameter.
| Number of Pieces | Number of Sizes Included | Includes | Specifications Met | Temp. Range, °F | Hardness | Color | Each | |
| 382 | 30 | Dash Numbers 006-012, 110-116, 210-222, 325-327 | ASTM D2000, SAE AS568 | -25° to 250° | Durometer 90A (Hard) | Black | 0000000 | 000000 |
| 385 | 30 | 2.0 mm wide o-rings (3, 4, 5, 6, 7, 8, 10 mm IDs) 2.5 mm wide o-rings (10, 11, 12, 14, 16, 17, 19 mm IDs) 3.0 mm wide o-rings (19, 20, 22, 24, 25, 27, 28, 30, 32, 33, 35, 36, 38 mm IDs) 4.0 mm wide o-rings (38, 41, 44 mm IDs) | ASTM D2000 | -25° to 250° | Durometer 90A (Hard) | Black | 0000000 | 00000 |
Oil-Resistant Soft Buna-N O-Ring Assortments
Softer than standard Buna-N O-rings for a better seal in low-pressure applications. The O-rings in this assortment resist animal, vegetable, and motor oil. They have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.
| Number of Pieces | Number of Sizes Included | Includes | Specifications Met | Temperature Range, °F | Hardness | Color | Each | |
| 382 | 30 | Dash Numbers 006-012, 110-116, 210-222, 325-327 | ASTM D2000, SAE AS568 | -25° to 250° | Durometer 50A (Soft) | Black | 0000000 | 000000 |
Oil-Resistant Hard Buna-N O-Ring Assortments
for Tube Fittings with Straight-Thread Connection
Also known as Boss O-rings, all of the O-rings in these assortments are for use in tube fittings with a straight-thread connection. Made of hard Buna-N, they offer excellent wear resistance. They also resist animal, vegetable, and motor oil. These O-rings have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.
| Number of Pieces | Number of Sizes Included | Includes | Specifications Met | Temperature Range, °F | Hardness | Color | Each | |
| 212 | 20 | Dash Numbers 901-914, 916, 918, 920, 924, 928, 932 | ASTM D2000, SAE AS568 | -25° to 250° | Durometer 90A (Hard) | Black | 0000000 | 000000 |
Square-Profile Oil-Resistant Buna-N O-Ring Assortments
All of the O-rings in this assortment have a square profile with flat edges on all four sides. They cover more surface than round-profile O-rings for a better seal in static applications, such as hose, pipe, and faucet connections. Made of Buna-N, these O-rings resist animal, vegetable, and motor oil. All are sized to the SAE standard AS568.
| Number of Pieces | Number of Sizes Included | Includes | Specifications Met | Temperature Range, °F | Hardness | Color | Each | |
| 382 | 30 | Dash Numbers 006-012, 110-116, 210-222, 325-327 | ASTM D2000, SAE AS568 | -25° to 250° | Durometer 70A (Medium) | Black | 0000000 | 0000000 |
X-Profile Oil-Resistant Buna-N O-Ring Assortments
The O-rings in these assortments are also known as Quattro Seals and X-rings. They have an X-profile with four points of contact for a better seal in dynamic applications than round-profile O-rings, plus they require less compression to make a seal, so they offer a longer service life. Made of Buna-N, these O-rings resist animal, vegetable, and motor oils. All are sized to the SAE standard AS568.
| Number of Pieces | Number of Sizes Included | Includes | Specifications Met | Temperature Range, °F | Hardness | Color | Each | |
| 226 | 36 | Dash Numbers 005-018, 110-121, 210-219 | ASTM D2000, SAE AS568 | -25° to 250° | Durometer 70A (Medium) | Black | 00000000 | 000000 |
Chemical-Resistant Viton® Fluoroelastomer O-Ring Assortments
All of the O-rings in these assortments are Viton® fluoroelastomer and resist isopropyl alcohol, mineral oils, and transmission fluid. They have a round profile and are suitable for a wide range of static and dynamic sealing applications.
Inch O-rings have a dash number and are sized to the SAE standard AS568.
Metric O-rings are sized to the actual measured inside diameter.
The 1,110-piece assortment contains a mix of standard O-rings and O-rings for tube fittings with a straight-thread connection.
| No. of Pieces | No. of Sizes Included | Includes | Specifications Met | Temp. Range, °F | Each | |
Durometer 75A (Medium) | ||||||
|---|---|---|---|---|---|---|
Black | ||||||
| 180 | 30 | Dash Numbers 006-012, 110-116, 210-222, 325-327 | ASTM D2000, SAE AS568, SAE J200 | -15° to 400° | 0000000 | 0000000 |
| 500 | 36 | 1.5 mm wide o-rings (5, 13, 16 mm IDs) 1.6 mm wide o-rings (2.2, 3.1, 4.1, 7.1, 9.1, 10.1, 13.1 mm IDs) 2.0 mm wide o-rings (4, 6, 8, 9, 10, 12, 14, 16, 19, 20 mm IDs) 2.4 mm wide o-rings (4.3, 5.3, 5.6, 7.6, 8.3, 8.6 mm IDs) 2.5 mm wide o-rings (10, 13-19 mm IDs) 3.0 mm wide o-rings (9, 10, 11 mm IDs) | ASTM D2000, SAE J200 | -15° to 400° | 0000000 | 000000 |
| 611 | 37 | Dash Numbers 006-012, 110-116, 210-222, 325-334 | ASTM D2000, SAE AS568, SAE J200 | -15° to 400° | 00000000 | 000000 |
| 1,110 | 150 | Dash Numbers 001-046, 110-151, 210-237, 325-338, 901-914, 916, 918, 920, 924, 928, 932 | ASTM D2000, SAE AS568, SAE J200 | -15° to 400° | 0000000 | 000000 |
Ultra-Chemical-Resistant Rigid PTFE O-Ring Assortments
The O-rings in this assortment are rigid and hard with a slippery surface. Made of PTFE, they resist harsh chemicals, such as acetone, fluorinated solvents, methanol, and boric, nitric, and sulfonic acids. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
| Number of Pieces | Number of Sizes Included | Includes | Temperature Range, °F | Hardness | Color | Each | |
| 325 | 36 | Dash Numbers 005-018, 110-121, 210-219 | -100° to 500° | Durometer 55D (Hard) | White | 00000000 | 0000000 |
Chemical-Resistant Hard Viton® Fluoroelastomer O-Ring
Assortments for Tube Fittings with Straight-Thread Connection
Also known as Boss O-rings, all of these hard Viton® fluoroelastomer O-rings are for use in tube fittings with a straight-thread connection. They resist wear, isopropyl alcohol, mineral oils, and transmission fluid. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
| Number of Pieces | Number of Sizes Included | Includes | Specifications Met | Temperature Range, °F | Hardness | Color | Each | |
| 212 | 20 | Dash Numbers 901-914, 916, 918, 920, 924, 928, 932 | ASTM D2000, SAE AS568, SAE J200 | -15° to 400° | Durometer 90A (Hard) | Black | 0000000 | 0000000 |
Water- and Steam-Resistant and High-Temperature O-Ring Assortments
These assortments include a mix of 584 EPDM O-rings that resist water and steam and 584 silicone O-rings that resist temperatures up to 450° F. These O-rings have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.
EPDM Rubber | Silicone Rubber | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of PIeces | No. of Sizes Included | Includes | Specifications Met | Temp. Range, °F | Hardness | Color | Specifications Met | Temp. Range, °F | Hardness | Color | Each | |
| 1,168 | 19 | Dash Numbers 006-012, 110-116, 210-214 | ASTM D2000 SAE AS568 SAE J200 | -60° to 250° | Durometer 70A (Medium) | Black | SAE AS568 | -65° to 450° | Durometer 70A (Medium) | Red | 0000000 | 0000000 |
Oil- and Chemical-Resistant O-Ring Assortments
This assortment contains 584 Buna-N O-rings that resist oil and 584 Viton® fluoroelastomer O-rings that resist boric acid, fuels, and transmission fluid. These O-rings have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.
Buna-N Rubber | Viton® Fluoroelastomer Rubber | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Pieces | Number of Sizes Included | Includes | Temperature Range, °F | Hardness | Color | Temperature Range, °F | Hardness | Color | Each | |
| 1,168 | 19 | Dash Numbers 006-012, 110-116, 210-214 | -25° to 250° | Durometer 70A (Medium) | Black | -15° to 400° | Durometer 75A (Medium) | Brown | 0000000 | 0000000 |
Water- and Steam-Resistant O-Ring Assortments
In addition to water and steam, the O-rings in this assortment resist ethanol and ethylene glycol. Made of EPDM, all have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
| Number of Pieces | Number of Sizes Included | Includes | Specifications Met | Temperature Range, °F | Hardness | Color | Each | |
| 200 | 12 | Dash Numbers 010-012, 110-116, 211-212 | ASTM D2000, SAE AS568, SAE J200 | -60° to 250° | Durometer 70A (Medium) | Black | 00000000 | 000000 |
High-Temperature O-Ring Assortments
Able to withstand heat up to 450° F, the O-rings in these assortments are silicone and maintain a strong seal even when the temperature rises. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
| Number of Pieces | Number of Sizes Included | Includes | Temperature Range, °F | Hardness | Color | Each | |
| 200 | 12 | Dash Numbers 010-012, 110-116, 211-212 | -65° to 450° | Durometer 70A (Medium) | Red | 00000000 | 000000 |
O-Ring Bonding Kits
This kits include everything you need to make your own O-rings, including cord stock, a splicing jig, adhesive, and a razor blade.
Buna-N cord stock resists oil, grease, and hydraulic fluid.
EPDM cord stock resists water, steam, and isopropyl alcohol.
Viton® fluoroelastomer cord stock resists boric acid, fuels, and transmission fluid.
Relacement jig splices cord stock from 0.103” to 0.375” Wd.
| Material | Wd. | Hardness | Temperature Range, °F | Color | Lg., ft. | Each | |
| Buna-N Rubber | 0.103", 0.139", 0.210", 0.275" | Durometer 70A (Medium) | -40° to 212° | Black | 7 | 0000000 | 000000 |
| Buna-N Rubber | 1.500mm, 0.070", 2.000mm, 2.500mm, 0.103", 3.000mm, 3.500mm, 0.139", 4.000mm, 5.000mm, 0.210", 5.700mm, 0.275", 8.400mm | Durometer 70A (Medium) | -40° to 212° | Black | 3 | 0000000 | 00000 |
| Buna-N Rubber | 1.500mm, 2.000mm, 2.500mm, 3.000mm, 3.500mm, 4.000mm, 5.000mm, 5.700mm, 8.400mm | Durometer 70A (Medium) | -40° to 212° | Black | 3 | 000000 | 00000 |
| EPDM Rubber | 0.070", 0.103", 0.139", 0.210", 0.275" | Durometer 70A (Medium) | -65° to 300° | Black | 7 | 00000000 | 00000 |
| Viton® Fluoroelastomer Rubber | 0.103", 0.139", 0.210", 0.275" | Durometer 75A (Medium) | 5° to 400° | Black | 7 | 0000000 | 000000 |
| 4" Lg. × 5/8" Wd. Replacement Jig for 0.103" to 0.375" Wd. Cord Stock | 000000 | Each | 00000 |
O-Ring Hot-Bonding Kits
Also known as O-ring vulcanizing kits, these use a combination of heat and adhesive to create a bond that’s stronger and has greater elasticity than a bond made of adhesive alone. Kits include a sheet of adhesive for bonding silicone cord stock. Cord stock is sold separately. They can also hot bond Viton® fluoroelastomer cord stock using the three sets of two-part adhesive (sold separately).
| For Cord Stock Wd. | Includes | Each | |
| 0.07", 0.103", 0.139", 0.21", 0.275", 0.312", 0.375", 0.5" | 120V AC Heater 4" x 4" sheet of silicone-bonding adhesive for bonding silicone cord stock Cutting Knife Die Plastic Carrying Case Precision Mold | 0000000 | 000000000 |
| 1.6mm, 2.4mm, 3mm, 4mm, 5.7mm | 120V AC Heater 4" x 4" sheet of silicone-bonding adhesive for bonding silicone cord stock Cutting Knife Die Plastic Carrying Case Precision Mold | 0000000 | 00000000 |
Backup Ring Assortments
These 325-piece assortments mean you’ll always have a backup ring on hand. Use them to extend the life of your O-rings and improve their performance in high-pressure applications. The backup rings are made of PTFE and resist harsh chemicals such as, acetone, fluorinated solvents, methanol, and many acids.
| Number of Pieces | Number of Sizes | Includes | Hardness | Temperature Range, °F | Color | Each | |
| 325 | 36 | Dash Numbers 005-018, 110-121, 210-219 | Durometer 55D (Hard) | -100° to 500° | White | 0000000 | 000000 |