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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 | 000000 |
| 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.
For technical drawings and 3-D models, click on a part number.
| 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.
For technical drawings and 3-D models, click on a part number.
| 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.
For technical drawings and 3-D models, click on a part number.
| 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.
For technical drawings and 3-D models, click on a part number.
| 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 |
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 |
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 |
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.
For technical drawings and 3-D models, click on a part number.
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 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.
For technical drawings and 3-D models, click on a part number.
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 |
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 |
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.
For technical drawings and 3-D models, click on a part number.
| 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 |
O-Ring Bonding Kits
These 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 and grease.
EPDM cord stock resists water, steam, and isopropyl alcohol.
Fluoroelastomer cord stock resists boric acid, fuels, and transmission fluid.
Relacement jigs splice 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", 0.21", 0.275" | Durometer 70A (Medium) | -40° to 212° | Black | 7 | 0000000 | 000000 |
| Buna-N Rubber | 1.5mm, 0.07", 2mm, 2.5mm, 0.103", 3mm, 3.5mm, 0.139", 4mm, 5mm, 0.21", 5.7mm, 0.275", 8.4mm | Durometer 70A (Medium) | -40° to 212° | Black | 3 | 0000000 | 00000 |
| Buna-N Rubber | 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 5.7mm, 8.4mm | Durometer 70A (Medium) | -40° to 212° | Black | 3 | 000000 | 00000 |
| EPDM Rubber | 0.07", 0.103", 0.139", 0.21", 0.275" | Durometer 70A (Medium) | -65° to 300° | Black | 7 | 00000000 | 00000 |
| Fluoroelastomer Rubber | 0.103", 0.139", 0.21", 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 | 0000000 |