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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 5331-00-187-3611 P/N P3057REVAPCAN6230B47 · 287-1005-47 · 287-1005-47 · G650301-3 · +23 more
  2. O-RING NSN 5331-00-167-5115 P/N 57465000-A · 6843333-127 · 6843333-127 · 6843333-127 · +23 more
  3. O-RING NSN 5331-00-166-8399 P/N 3S-5271-22 PIEC · 649-393-154-0 · M83248/1-154 · NAS1593-154 · +23 more
  4. O-RING NSN 5331-00-166-8396 P/N N3712 · 903683C1 · J221P037 · AMS7276 · +23 more
  5. O-RING NSN 5331-00-166-1084 P/N SSN596-520-2278 · AS3581-012 · SSN593-520-1863 · MILR83248 · +23 more
  6. O-RING NSN 5331-00-165-1964 P/N GS570AP139C448 · C330C474K5RHA · 710893-8 · M83248/1-246 · +23 more
  7. O-RING NSN 5331-01-107-4954 P/N 200005PL FIND NO 62 · K966020 ITEM 103 · 400-165-092 · D35-075-2190 · +22 more
  8. O-RING NSN 5331-01-096-8824 P/N M83248-2-904 · AS3581-904 · AS3581-904CP · M83248-2-904 · +22 more
  9. O-RING NSN 5331-01-023-0783 P/N PRP255-8307 · 255-8307 · 2533405-255 · PRP568-255-4067-70 · +22 more
  10. O-RING NSN 5331-01-006-3931 P/N AMS7276 · M83248/1-040 · AS3209-040 · M83248/1-040 · +22 more
  11. O-RING NSN 5331-00-800-5182 P/N PRP914-4 142-70 · 102A10001-24 · 1557052-17 · 2740136 · +22 more
  12. O-RING NSN 5331-01-551-8711 P/N 7383858-V3D10437-21 · 7550478-V3D10437-21 · 7550478-V3D10431-35 · 7383858-V3D10431-35 · +22 more
  13. O-RING NSN 5331-01-084-7947 P/N 7377-254 · P48026-254 · 4067-70-254 · MS28775-254 · +22 more
  14. O-RING NSN 5331-01-064-6285 P/N 07A199-912S · 912-11507 · GS570J3G12 · 123-3-912-2 · +22 more
  15. O-RING NSN 5331-01-050-1539 P/N PRP019-7757 · 019-7757 · 803-4384536-1XXX-48 · 571-6134008 ITE · +22 more
  16. O-RING NSN 5331-01-031-4430 P/N PRP6230-48 · 270-7377 · 270-846-70 · RWS-568-270 · +22 more
  17. O-RING NSN 5331-00-624-1855 P/N MS28775-328 · 7377-328 · 6914616-328 · P48026-328 · +22 more
  18. O-RING NSN 5331-00-618-2517 P/N MS29561-214 · D224-13 · PRP902-19 142-70 · S8057K19 · +22 more
  19. O-RING NSN 5331-00-408-3220 P/N 7866-386 · 60-P-31-386 · 100347-9000-106 · 100-386-0270 · +22 more
  20. O-RING NSN 5331-00-390-7910 P/N 7866-344 · 60-P-31-344 · PX1775-344 · 10V60-141-344 · +22 more
  21. O-RING NSN 5331-00-297-5362 P/N PRP932-7866 · 932-7866 · 7866-32 · 60-P-31-32 · +22 more
  22. O-RING NSN 5331-00-291-3313 P/N 7866-255 · 60-P-31-255 · PL547-176PC361 · PX1775-255 · +22 more
  23. O-RING NSN 5331-00-291-3310 P/N 7866-242 · 60-P-31-242 · S0310-242F · PX1775-242 · +22 more
  24. O-RING NSN 5331-00-291-3273 P/N 7866-229 · 900360 · 229-C-69 · 457-60-229 · +22 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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