Seal ID Seal ID |
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Seal OD Seal OD |
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For Use With For Use With |
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For Cylinder Type For Cylinder Type |
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For Bore Diameter For Bore Diameter |
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Cylinder Seal Type Cylinder Seal Type |
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| Piston Seal |
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| Rod Seal |
Hardness Hardness |
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Maximum Pressure Maximum Pressure |
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For Groove Diameter For Groove Diameter |
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O-Ring Dash Number Equivalent O-Ring DashNumber Equivalent  |
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Maximum Speed Maximum Speed |
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Hardness Rating Hardness Rating |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Cylinder Seals
Rod wipers scrape dirt, dust, and moisture from the rod, preventing contamination inside your cylinder.
Rod seals maintain the pressure inside cylinders and prevent fluid from leaking out.
Wear rings guide the rod and piston to prevent uneven wear and optimize seal performance.
Head seals are a more reliable alternative to the standard O-ring/backup ring combination—they resist twisting and remain stable even in applications with fluctuating pressure.
Buffering seals protect hydraulic cylinders from pressure spikes and shock in high-pressure hydraulic applications.
Cushioning seals minimize wear and noise in air-powered cylinders by preventing the piston from slamming against the cylinder body.
Piston seals make a seal between their outside edge and the cylinder bore to prevent internal leaks.
Piston Seals for O-Ring Grooves
Avoid common O-ring failure in dynamic applications—the square base of these seals prevents twisting, while backup rings protect against extrusion.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Groove | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Dia. | Dia. | Wd. | O-Ring Dash Number Equivalent | Max. Speed, ft./sec. | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Each | |
Buna-N Rubber with Nylon Plastic Backup Ring | ||||||||||
| 1/2" | 0.316" | 0.152" | 109 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 5/8" | 0.381" | 0.187" | 204 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 3/4" | 0.506" | 0.187" | 206 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 7/8" | 0.631" | 0.187" | 208 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1" | 0.757" | 0.187" | 210 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 1/8" | 0.882" | 0.187" | 212 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 1/4" | 1.007" | 0.187" | 214 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 3/8" | 1.132" | 0.187" | 216 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 1/2" | 1.257" | 0.187" | 218 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 5/8" | 1.382" | 0.187" | 220 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 3/4" | 1.507" | 0.187" | 222 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 7/8" | 1.503" | 0.282" | 325 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 2" | 1.628" | 0.282" | 326 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 2 1/8" | 1.753" | 0.282" | 327 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 2 1/4" | 1.878" | 0.282" | 328 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 2 3/8" | 2.003" | 0.282" | 329 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 2 1/2" | 2.128" | 0.282" | 330 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 3" | 2.628" | 0.282" | 334 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 3 1/4" | 2.878" | 0.282" | 336 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 3 1/2" | 3.129" | 0.282" | 338 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 4" | 3.629" | 0.282" | 342 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | 0000000 | 00000 |
High-Pressure Piston Seals
Rated for pressure up to 10,000 psi, these seals withstand the highest pressure of our piston seals. They have two high-strength backup rings that protect against extrusion.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Groove | O-Ring | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Bore Dia. | Dia. | Wd. | O-Ring Dash Number Equivalent | Max. Speed, ft./sec. | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Hardness | Color | Each | |
Glass-Filled PTFE Plastic with Nylon Plastic Backup Ring and Buna-N Rubber O-Ring | ||||||||||||
| 2" | 1.625" | 0.424" | Not Rated | 5 | 10,000 | -30° to 230° | Durometer 60D (Extra Hard) | Gray | Durometer 70A (Hard) | Black | 0000000 | 000000 |
| 2 1/2" | 2.125" | 0.424" | Not Rated | 5 | 10,000 | -30° to 230° | Durometer 60D (Extra Hard) | Gray | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 3" | 2.520" | 0.579" | Not Rated | 5 | 10,000 | -30° to 230° | Durometer 60D (Extra Hard) | Gray | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 3 1/2" | 3.020" | 0.579" | Not Rated | 5 | 10,000 | -30° to 230° | Durometer 60D (Extra Hard) | Gray | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 4" | 3.520" | 0.579" | Not Rated | 5 | 10,000 | -30° to 230° | Durometer 60D (Extra Hard) | Gray | Durometer 70A (Hard) | Black | 0000000 | 00000 |
Rod Seals for O-Ring Grooves
Avoid common O-ring failure in dynamic applications—the square base of these seals prevents twisting, while backup rings protect against extrusion.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Groove | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Rod Dia. | Dia. | Wd. | O-Ring Dash Number Equivalent | Max. Speed, ft./sec. | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Backup Ring Color | Each | |
Buna-N Rubber with Nylon Plastic Backup Ring | |||||||||||
| 1/2" | 0.742" | 0.187" | 206 | 1.6 | 5,000 | -40° to 225° | Durometer 75A (Hard) | Black | Gray | 0000000 | 00000 |
| 5/8" | 0.867" | 0.187" | 208 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 0000 |
| 3/4" | 0.991" | 0.187" | 210 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 0000 |
| 7/8" | 1.116" | 0.187" | 212 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 0000 |
| 1" | 1.241" | 0.187" | 214 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 0000 |
| 1 1/8" | 1.366" | 0.187" | 216 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 0000 |
| 1 3/8" | 1.616" | 0.187" | 220 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 0000 |
| 1 1/2" | 1.870" | 0.282" | 325 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 0000 |
| 1 5/8" | 1.995" | 0.282" | 326 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 0000 |
| 2" | 2.370" | 0.282" | 329 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 00000 |
| 2 1/4" | 2.612" | 0.282" | 331 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 00000 |
| 2 1/2" | 2.870" | 0.282" | 333 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 00000 |
| 2 3/4" | 3.120" | 0.282" | 335 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 00000 |
| 3" | 3.369" | 0.282" | 337 | 1.6 | 5,000 | -40° to 225° | Durometer 70A (Hard) | Black | Gray | 0000000 | 00000 |