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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 5331-00-849-0858 P/N S8990-110 · S8990-110 · S8990-110 · S8990-110 · +8 more
  2. O-RING NSN 5331-00-845-8343 P/N AK25C85 · PRP 568-015-1235-60 · AMS3303 · AS568-015 · +8 more
  3. O-RING NSN 5331-00-842-9255 P/N 1497 · 6764920 · HX1692 · 30-0464-5 · +8 more
  4. O-RING NSN 5331-00-839-9966 P/N 2-230S604-70 · 2-231S604-70 · 07A568-231S · 07A568-230S · +8 more
  5. O-RING NSN 5331-00-833-1429 P/N 287MR003P038 · MS28775-137 · 195076 · MS28775-137 · +8 more
  6. O-RING NSN 5331-00-828-8060 P/N 904-11628 · 3-904 L610-8 · 1-300-369 · 1-300-369-03 · +8 more
  7. O-RING NSN 5331-00-816-9726 P/N ARP219PC10V70-234 · 100A10-24 · 593-513-1862819PC5 · 593-526-1862879PC3 · +8 more
  8. O-RING NSN 5331-00-808-5926 P/N 246-1487 · 246-1467 · A1633-5 · 2-246C0MP0UNDNU · +8 more
  9. O-RING NSN 5331-00-805-8688 P/N 69890-265 · PRP568-042-4024-65 · AS3578-042 · 5331PL1279847 · +8 more
  10. O-RING NSN 5331-00-804-2748 P/N 914-12-711-70 · 6098284-3 · PRP568-024-4024-65 · AS3578-024 · +8 more
  11. O-RING NSN 5331-00-804-2746 P/N 287-1166P97 · 182466 · 69890-15 · 199781 · +8 more
  12. O-RING NSN 5331-00-803-9889 P/N 497250-318 · 66G342-10 · MS29561-232 · 5331PL0144153 · +8 more
  13. O-RING NSN 5331-00-803-5897 P/N AS3578-025 · 5331PL0951122 · 5331PL1750329 · 715447-25 · +8 more
  14. O-RING NSN 5331-01-717-8521 P/N 726-8835706-309 · 563-8837194-39 · R6961602-39 · LSA004586-309 · +8 more
  15. O-RING NSN 5331-01-677-3900 P/N 7383858-AS568-234AMS3656CP · 7383858-AS568-234AMS3656 · AS568-234AMS3656 · AS568-234AMS3656CP · +8 more
  16. O-RING NSN 5331-01-677-3846 P/N 7383858-26215620333AAS568-212 · 7383858-AS568-212AMS3656 · 7383858-AS568-212AMS3656CP · 7383858-26215620333AAS568-212CP · +8 more
  17. O-RING NSN 5331-01-605-4176 P/N 028-11145-005 · SO 02708119-21 ITEM 49 · SO 02708119-21 ITEM 50 · SO 02708119-21 ITEM 51 · +8 more
  18. O-RING NSN 5331-01-550-4867 P/N 2852-2001-11 ITEM NO 30 · 7383858-2852200111A-30 · 7550478-2852200111A-30 · M83248/1-007 · +8 more
  19. O-RING NSN 5331-01-548-3690 P/N 7550478-264277101-029 · 845-4687566 ITEM 29 · 2642-771-01 ITEM 29 · 54-66-4115 · +8 more
  20. O-RING NSN 5331-01-548-3686 P/N 7550478-264277101-030 · 845-4687566 ITEM 30 · 2642-771-01 ITEM 30 · 264277101-030 · +8 more
  21. O-RING NSN 5331-01-535-7774 P/N 124696 · 6010000125 · 2 0175-234 · 92270552 · +8 more
  22. O-RING NSN 5331-01-528-6410 P/N AS3581-330CP · AMS7259 · SAE-AS3581CP · DF330618 FIND 10CP · +8 more
  23. O-RING NSN 5331-01-501-4302 P/N ST1946-130 · ST1946-130 · ST1946-130 · ST1946-130 · +8 more
  24. O-RING NSN 5331-01-480-3367 P/N ST1946-110 · ST1946-110 · ST1946-110 · ST1946-110 · +8 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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