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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 5331-01-031-8276 P/N 2502774-17 · 2502774-17 · 2502774-17 · 2502774 · +1 more
  2. O-RING NSN 5331-01-031-8274 P/N 2502774-9 · 2502774-9 · 2502774-9 · 2502774-9 · +1 more
  3. O-RING NSN 5331-01-031-8268 P/N 7-57-115 · 2510427 · 2-111 E515-80 · 2510427 · +1 more
  4. O-RING NSN 5331-01-031-8260 P/N 2505679 · 2505679-5 · ORUD000062T01 · 2505679-5 · +1 more
  5. O-RING NSN 5331-01-031-8256 P/N 2507294-23 · 2507294-23 · 2-037 N674-7 · 2507294-23 · +1 more
  6. O-RING NSN 5331-01-031-8247 P/N 2507294-53 · 2507294-53 · 2-120 N674-7 · 2507294-53 · +1 more
  7. O-RING NSN 5331-01-031-8246 P/N 2507294-73 · 2507294-73 · 2507294-73 · 2507294-73 · +1 more
  8. O-RING NSN 5331-01-031-8242 P/N 2507294-36 · 2507294-36 · 2-160 N674-7 · 2507294-36 · +1 more
  9. O-RING NSN 5331-01-031-8240 P/N 2507294-54 · 2507294-54 · 2-157 N674-7 · 2507294-54 · +1 more
  10. O-RING NSN 5331-01-031-8229 P/N 2507294-74 · 2507294-74 · 2-032 N674-7 · 2507294-74 · +1 more
  11. O-RING NSN 5331-01-031-8210 P/N 2507294-65 · 2507294-65 · 2-155 N674-7 · 2507294-65 · +1 more
  12. O-RING NSN 5331-01-031-1334 P/N 2507294-1 · 2507294-1 · 2507294-1 · 2-005 N674-7 · +1 more
  13. O-RING NSN 5331-01-031-1330 P/N 2507294-25 · 2507294-25 · 2507294-25 · 2-040 N674-7 · +1 more
  14. O-RING NSN 5331-00-761-1688 P/N AS3582-245 · MS9068-245 · 2-245S604-70 · AS3582-245 · +1 more
  15. O-RING NSN 5331-00-759-7000 P/N J228P906 · 5331PL2178631 · J228P906 · 10117111 · +1 more
  16. O-RING NSN 5331-00-759-6968 P/N J228P123 · 5331PL2178627 · J228P123 · 10159848 · +1 more
  17. O-RING NSN 5331-00-759-3573 P/N ARP568-338MILG23652TY1 · V0776 2-338 · 2-338V776-70 · 2-338MILG23652TY1 · +1 more
  18. O-RING NSN 5331-00-759-2010 P/N MILR25988 · MIL-DTL-25988/1 · M25988/1-131 · 2661058Y131 · +1 more
  19. O-RING NSN 5331-00-758-3844 P/N 610-0024-001 · 5331PL2125469 · 5331PL2188127 · 610-0024-001 · +1 more
  20. O-RING NSN 5331-00-756-9083 P/N 814546-21 · 814546-21 · 814546-21 · 814546-21 · +1 more
  21. O-RING NSN 5331-00-756-8795 P/N 5H3252 · 5H3252 · 5H3252 · 2-256N951-75 · +1 more
  22. O-RING NSN 5331-00-753-2204 P/N 902-46-907-70 · MILG22050 · MIL-DTL-22050 · 5427-46 · +1 more
  23. O-RING NSN 5331-00-753-2033 P/N MILG22050 · M22050-1-906 · MIL-DTL-22050 · 3-906E688-70 · +1 more
  24. O-RING NSN 5331-00-753-1848 P/N 6421000 · 648104 · 99137309 · 37309 · +1 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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