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Home/Military Standard parts/Seals & Fittings/FSC 5331
Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-01-155-4277 P/N 2HS556 · 2HS556 · 5331PL1263812 · 22617-4 · +2 more
  2. O-RING NSN 5331-01-155-4203 P/N MIL-DTL-25988/4 · MIL-R-25988/4 · M25988/4-130 · 363/1-130 · +2 more
  3. O-RING NSN 5331-01-155-3407 P/N 5731174 · AMS3220 · AS568-129 · 292570 · +2 more
  4. O-RING NSN 5331-01-155-1781 P/N 09335 · 2AE921 · 2AE921 · 6847 · +2 more
  5. O-RING NSN 5331-01-154-3997 P/N BCPNB1161017 · 10003706 · 11EK78 · 11EK78 · +2 more
  6. O-RING NSN 5331-01-153-1242 P/N NAS1613 · NAS1611-038 · NAS1611-038A · 5331PL0658342 · +2 more
  7. O-RING NSN 5331-01-153-1239 P/N AS568B-237 · 2-237 N552-90 · AS568B-237 · N0552 2-237 · +2 more
  8. O-RING NSN 5331-01-152-7208 P/N A49627 · AS568-224MILG23652TY1 · 3189119-33 · 2-224V776-70 · +2 more
  9. O-RING NSN 5331-01-152-0088 P/N AS568-214 · GITS-202 · 2-14N674-70 · 214N674-70 · +2 more
  10. O-RING NSN 5331-01-151-2783 P/N AS568-216MIL-G-21610 TY 1 · 2-216N683-70 · 633-7942-41 · 633-8282-49 · +2 more
  11. O-RING NSN 5331-01-150-4848 P/N 115-7509 · AS568-115 MIL-P-5516 CLASS A · 115-7509 · 225.20.11.41-01 .01-17 · +2 more
  12. O-RING NSN 5331-01-148-7490 P/N AS568-227 MIL-G-23652 TY 2 · AS568-227 · MIL-R-83248C TY2 CL2 · 4153-4227 · +2 more
  13. O-RING NSN 5331-01-143-2454 P/N MS29512-13 · AS568-913 · MS29512-13 · AS568-913 · +2 more
  14. O-RING NSN 5331-01-142-4249 P/N 82005506-036 · 82005506-036 · 82005506-036 · 10163430 · +2 more
  15. O-RING NSN 5331-01-137-8441 P/N MS28775-461 · MS28775-461 · 2-461-N304-7 · 2-461-N0304-70 · +2 more
  16. O-RING NSN 5331-01-136-4125 P/N 82005510-040 · 82005510-040 · 82005510-040 · 82005510-040 · +2 more
  17. O-RING NSN 5331-01-135-9514 P/N 36B423604P1 · 10117168 · 5-125 V763-60 · 5-125CPDV763-60 · +2 more
  18. O-RING NSN 5331-01-135-9513 P/N PRP-568-014-3110-70 · 10339579 · 059-810-600 · 2-014 C557-70 · +2 more
  19. O-RING NSN 5331-01-135-7289 P/N AS568-461MILR7362TYPE1 · AS568-461MIL-R- 7362 TYPE 1 · AS568-461 SAEAMS-R-7362TYPE1 · SAE AS568 · +2 more
  20. O-RING NSN 5331-01-134-1984 P/N MS29513-284 · AS29513-284 · MS29513-284 · MS29513-284 · +2 more
  21. O-RING NSN 5331-01-133-9304 P/N VA70-9-121 · 1008-B300 FIND 3 · VA70-9-121 · VA70-9-121 · +2 more
  22. O-RING NSN 5331-01-133-5858 P/N 845-188957 PIECE 71 · MS28775-206 · MIL-P-25732 · MS28775-206 · +2 more
  23. O-RING NSN 5331-01-133-1597 P/N ARP568-341MILG 23652 TY 2 · AS3581-341 · H568-341 · ARP568-341MILG2 3652TY2 · +2 more
  24. O-RING NSN 5331-01-132-8576 P/N MS28775-207 · MIL-P-25732 · MS28775-207 · 2-207N304-75 · +2 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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