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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.

Filter

53,078 items

  1. O-RING NSN 5331-00-418-2279 P/N 820-4446005-6-2 · MS28775-430 · 7122F11PC6-2 · N00271 · +1 more
  2. O-RING NSN 5331-00-417-6445 P/N 117-7377 · 576R618H01 · W4072351AL · W4072351AL · +1 more
  3. O-RING NSN 5331-00-415-2199 P/N MS9386-137 · 5331PL2228384 · MS9386-137 · SAE-AS9386 · +1 more
  4. O-RING NSN 5331-00-414-2698 P/N MS9967-129 · MS9967-129 · MILR3533-129ES · MS9967-129 · +1 more
  5. O-RING NSN 5331-00-414-2675 P/N MS9386-135 · MS9386-135 · AMS3304-135ES · MS9386-135 · +1 more
  6. O-RING NSN 5331-00-413-3027 P/N S9412-524 · S9412-524 · S9412-524 · 5330004133027 · +1 more
  7. O-RING NSN 5331-00-412-9908 P/N PRP7613070-4282-70 · SM-C-772429-3 · 0414193-017 · 5-438 N4771-70 · +1 more
  8. O-RING NSN 5331-00-409-9893 P/N 287-6008P026 · 287-6008P026 · 2-26L449-6 · 2-026L608-6 · +1 more
  9. O-RING NSN 5331-00-409-4458 P/N MS9386-120 · MS9386-120 · MS9386-120ES · SAE-AS9386 · +1 more
  10. O-RING NSN 5331-00-405-6031 P/N 10617878-121 · 2-121 N674-70 · 2-121N219-7 · 2-121N219-70 · +1 more
  11. O-RING NSN 5331-00-405-0798 P/N 260-737-70 · 2-260 N304-75 · 2-260N304-70 · N0304 2-260 · +1 more
  12. O-RING NSN 5331-00-404-4619 P/N 263500 · 4229342 · 3-916 · 363500 · +1 more
  13. O-RING NSN 5331-00-404-4076 P/N 202893 · 202893 · 202893 · 202893 · +1 more
  14. O-RING NSN 5331-00-403-9039 P/N C62622-71 · 6320735PC5 · 17000APC17063 · C62622-71 · +1 more
  15. O-RING NSN 5331-00-403-7655 P/N MS9386-025 · MS9386-025 · 457-5520 · MS9386-025 · +1 more
  16. O-RING NSN 5331-00-403-0024 P/N 5109517 · 5330004030024 · 5331004030024 · PC5109517 · +1 more
  17. O-RING NSN 5331-00-401-6108 P/N AS3581-441 · GA1175 · GA1175 · AS3581-441 · +1 more
  18. O-RING NSN 5331-00-401-4820 P/N S9412-037 · S9412-037 · MIL-DTL-25988/2 · M25988/2-037 · +1 more
  19. O-RING NSN 5331-00-400-3977 P/N S9027E267 · S9026G267 · S9027E267 · S9027E267 · +1 more
  20. O-RING NSN 5331-00-399-0193 P/N 280912-0001PC68 · 4400181-2400 · ARP568-240MILS6 855 · 6517-01 · +1 more
  21. O-RING NSN 5331-00-395-6011 P/N GV-022525-013-H T · GV-22-525-13-HT · FV22-525-13HT · GV22-525-13HT · +1 more
  22. O-RING NSN 5331-00-394-7369 P/N BACP11K4 · 3-904-S383-70 · BACP11K4 · 3-904-S383-70 · +1 more
  23. O-RING NSN 5331-00-394-7126 P/N BACP11K2 · AS568-902-S32 · 3-902-S383-70 · AS568-902-S32 · +1 more
  24. O-RING NSN 5331-00-394-4915 P/N BACP11J113 · BACP11J113 · BACP11J113 · BACP11J113 · +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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