Filter by
System of Measurement
Cross Section Shape
Material
Maximum Temperature
For Use With
Hardness Rating
Fractional Width
Finish
Performance
Maximum Pressure
Hardness
Minimum Temperature
Specifications Met
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
REACH
RoHS
Export Control Classification Number (ECCN)
DFARS Specialty Metals
About O-Rings
%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
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
 |  |
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 | ||
