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About O-Rings
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Find the right size, compare compatible materials, and choose the best cross section shape for your O-ring.
Oil-Resistant Extreme-Pressure Stainless Steel O-Rings
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Made of silver-plated 321 stainless steel, these O-rings can handle extreme pressure up to 11,000 psi. They resist grease, hydraulic oil, mineral oil, motor oil, and synthetic lubricants. 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 actual measured dimensions of SAE standard AS9373; they do not have a dash number.
Each | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Fractional ID | ID | OD | Hardness | Max. Pressure, psi | Specs. Met | Temp. Range, ° F | 1-9 | 10-Up | |||
1/16 Fractional Width (0.062" Wide) | |||||||||||
| 3/8 | 0.376" | 1/2" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N31 | 000000 | 000000 | ||
| 1/2 | 0.501" | 5/8" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N32 | 00000 | 00000 | ||
| 5/8 | 0.626" | 3/4" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N33 | 00000 | 00000 | ||
| 3/4 | 0.751" | 7/8" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N34 | 00000 | 00000 | ||
| 7/8 | 0.876" | 1" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N35 | 00000 | 00000 | ||
| 1 | 1" | 1 1/8" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N36 | 00000 | 00000 | ||
| 1 1/8 | 1.126" | 1 1/4" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N37 | 00000 | 00000 | ||
| 1 1/4 | 1.251" | 1 3/8" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N38 | 00000 | 00000 | ||
| 1 3/8 | 1.376" | 1 1/2" | Rockwell C30 (Hard) | 11,000 | SAE AS9373 | -40 to 800 | 1181N39 | 00000 | 00000 | ||
