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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 5331-01-042-8242 P/N GS570J3K16 · 016-2677 · GS570J3K16 · 903-1529 · +1 more
  2. O-RING NSN 5331-01-042-2824 P/N 400-174-13 · 400-221-40 · 200-724-13 · 400-174P13 · +1 more
  3. O-RING NSN 5331-01-042-2393 P/N 200-724-18 · 400-221-48 · AS568-341 · 2-341S595-50 · +1 more
  4. O-RING NSN 5331-01-041-9661 P/N M25988/3-916 · MIL-R-25988/3 · MIL-DTL-25988/3 · 3-916L1223-60 · +1 more
  5. O-RING NSN 5331-01-041-7547 P/N A11300 · A011300 · 5CE83 · 5CE7 · +1 more
  6. O-RING NSN 5331-01-041-4749 P/N 6555437 · 2FX14 · 2FX14 · 6555437 · +1 more
  7. O-RING NSN 5331-01-040-4772 P/N 1378300 · 1378300 · 22617-10 · 5331010404772 · +1 more
  8. O-RING NSN 5331-01-039-6222 P/N AS568-031ZZR765 · AS568-031 · A-A-59588 · AS568-031 · +1 more
  9. O-RING NSN 5331-01-038-8720 P/N 1385623-10IN PIECE 42 · 803-1385623-102-42 · DD-26 PL CC-34 ITEM 42 · 2-272E540-80 · +1 more
  10. O-RING NSN 5331-01-036-4617 P/N 29771-043 · 29771-043 · WV-29771-03 · WV29771-043 · +1 more
  11. O-RING NSN 5331-01-035-4317 P/N AS568-236 · AMS-P-5510 · 2-236N507-9 · AS568-236 · +1 more
  12. O-RING NSN 5331-01-035-0304 P/N M83248/1-169 · M83248/1-169 · J221P1105 · M83248/1-169 · +1 more
  13. O-RING NSN 5331-01-033-5799 P/N 595029-1 · 595029-1 · MIL-DTL-25988/1 · M25988/1-166 · +1 more
  14. O-RING NSN 5331-01-033-5158 P/N 902-18 · HT2804 REF. B2C 6823 · 902-18 · 1HE1-AA-0000-G0002 · +1 more
  15. O-RING NSN 5331-01-033-2708 P/N AS3209-007 · AS3209-007 · ST3001-007 · AS3209-007 · +1 more
  16. O-RING NSN 5331-01-033-0459 P/N 2-278N103-70 · 5331PL0755773 · 2-278-N103-70 · 2-278N103-70 · +1 more
  17. O-RING NSN 5331-01-032-6491 P/N 649-7561 ITEM 13 · 649-7561-13 · 853-00791-001 · 853-00791-000 · +1 more
  18. O-RING NSN 5331-01-032-3547 P/N PLD301087PC103 · 2-473N674-70 · 2-473 N219-7 · 2-473N674-70 · +1 more
  19. O-RING NSN 5331-01-031-8289 P/N 2502774-27 · 2502774-27 · 2502774-27 · 2502774-27 · +1 more
  20. O-RING NSN 5331-01-031-8287 P/N 2502774-23 · 2502774-23 · 2502774-23 · 2502774-23 · +1 more
  21. O-RING NSN 5331-01-031-8285 P/N 2502774-25 · E0540 M82744-281/1W2B · 2502774-25 · 2502774-25 · +1 more
  22. O-RING NSN 5331-01-031-8284 P/N 2502774-5 · 2502774-5 · 2502774-5 · 2502774 · +1 more
  23. O-RING NSN 5331-01-031-8283 P/N 2502774-15 · 3-906-E515-80 · 2502774-15 · 2502774-15 · +1 more
  24. O-RING NSN 5331-01-031-8282 P/N 2502774-3 · 2502774-3 · 2502774-3 · 2502774-3 · +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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