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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 5331-00-297-4519 P/N 112-1347 · Q072112 · 2-112N674-70 · 0200-001-112 · +4 more
  2. O-RING NSN 5331-00-292-0791 P/N C100-111300 · 66G341-9 · 100T063 · 66G341-9 · +4 more
  3. O-RING NSN 5331-00-291-9205 P/N 6750 · 9916750 · 6750D · 3122963PC3 · +4 more
  4. O-RING NSN 5331-00-291-9186 P/N ACH6B3APC5877 · CFE5877A · ACH6B3DPC5877 · Y043S41-225PC5877 · +4 more
  5. O-RING NSN 5331-00-291-7347 P/N AS3569-233 · AMS7270K · AN123993 · AN123993 · +4 more
  6. O-RING NSN 5331-00-291-7293 P/N 318S9 · AS3569-231 · AN123991 · AN123991 · +4 more
  7. O-RING NSN 5331-00-291-7192 P/N IPD2H3934 · 53-601-273-001 · 53-601-273 · 2H-3934 · +4 more
  8. O-RING NSN 5331-00-291-3287 P/N 315S26 · AS3570-221 · AN123881 · AN123881 · +4 more
  9. O-RING NSN 5331-00-288-1997 P/N MILR25988 · M25988/1-338 · MIL-DTL-25988/1 · MIL-R-25988/1 · +4 more
  10. O-RING NSN 5331-00-286-0092 P/N 3F1908-36 · 3F1909PC36 · 1F1818PC36 · 3224175 · +4 more
  11. O-RING NSN 5331-00-285-9879 P/N A12454 · 4311486-7 · 4311486 · DE11486L · +4 more
  12. O-RING NSN 5331-00-285-9784 P/N 02191-2239 · AS3569-238 · AN123998 · 2191-2239 · +4 more
  13. O-RING NSN 5331-00-285-9770 P/N AN123988 · 84-1045 · AS3569-228 · AN123988 · +4 more
  14. O-RING NSN 5331-00-283-4578 P/N 92445-53 · 94515-3 · MIL-DTL-25988/1 · M25988/1-153 · +4 more
  15. O-RING NSN 5331-00-279-9317 P/N MIL-DTL-25988/1 · M25988/1-330 · MILR25988 · 105A330 · +4 more
  16. O-RING NSN 5331-00-264-9720 P/N 58-011-45 · B568-011 · AS568-011MILG23652TY2 · 5331PL1216092 · +4 more
  17. O-RING NSN 5331-00-252-6040 P/N MS29513-259 · 411187-259 · MS29513-259 · 109A903029 · +4 more
  18. O-RING NSN 5331-00-251-3817 P/N 1000-0030-110 · 110-3238 · 2518756-1 · 55893840-110 · +4 more
  19. O-RING NSN 5331-00-250-1227 P/N AN123922 · AS3570-262 · 35040C · 63642A · +4 more
  20. O-RING NSN 5331-00-248-9344 P/N 0065218.35.62 · AS568-213 · AMS3212 · 0065218.35.62 · +4 more
  21. O-RING NSN 5331-00-243-4824 P/N 287-6008P049 · 287-6008P049 · 2-113L608-60 · 2-113L449-6 · +4 more
  22. O-RING NSN 5331-00-242-6638 P/N AS3570-012 · 5330H34-002-5 · AN123862 · 2-012N180-70 · +4 more
  23. O-RING NSN 5331-00-242-6635 P/N AS3570-006 · AN123856 · 890394-1 · AN123856 · +4 more
  24. O-RING NSN 5331-00-242-6627 P/N 6708823 · 9121300 · 6708823 · 9121300 · +4 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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