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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 5331-00-394-1306 P/N S9026M010 · 2-010 S604-70 · 10124208 · AS568A-010-70SL · +1 more
  2. O-RING NSN 5331-00-393-3876 P/N S9413-590 · S9413-590 · AS3209-590 · AMS 7276G · +1 more
  3. O-RING NSN 5331-00-390-0119 P/N CW686PN · CW-686PN · F7846 PIECE 563 · CW2300 PIECE 62 · +1 more
  4. O-RING NSN 5331-00-385-6826 P/N 910-11646 · U531259-4 · MIL-DTL-25988/3 · M25988/3-910 · +1 more
  5. O-RING NSN 5331-00-381-8661 P/N 4490000-1 · 5-101 S604-70 · AB130E · 5-101S604-70 · +1 more
  6. O-RING NSN 5331-00-377-0579 P/N 2501275-11 · 2501275-11 · 2501275-11 · 8110-71214 · +1 more
  7. O-RING NSN 5331-00-373-0117 P/N MS9386-164 · MS9386-164 · S8990-164 · SAE-AS9386 · +1 more
  8. O-RING NSN 5331-00-364-9762 P/N 92444-36 · MILR25988 · MIL-DTL-25988/1 · M25988/1-036 · +1 more
  9. O-RING NSN 5331-00-360-2517 P/N 317S27 · 67G190-27 · 317S27 · 67G190-27 · +1 more
  10. O-RING NSN 5331-00-357-2038 P/N MIL-DTL-25988/1 · M25988/1-126 · MILR25988 · 10129589 · +1 more
  11. O-RING NSN 5331-00-355-6562 P/N 5331PL1256373 · ARP568-246 · 04772976 · 000-24600MG · +1 more
  12. O-RING NSN 5331-00-352-0517 P/N K73A0012-7 · K73A0012-7 · 2-382C147-70 · 2-382C1124-70 · +1 more
  13. O-RING NSN 5331-00-352-0333 P/N A3568-235 · N141002410 · 2-235C557-7 · 2-235C557-70 · +1 more
  14. O-RING NSN 5331-00-352-0329 P/N 2-234C557-7 · 5112-73 · ARP568-234C557- 7 · 2-234C147-70 · +1 more
  15. O-RING NSN 5331-00-352-0326 P/N 2-7C557-7 · 2-007C557-7 · 5002-53 · 6227-2C557-7 · +1 more
  16. O-RING NSN 5331-00-351-6971 P/N MIL-DTL-25988/2 · MIL-R-25988B · M25988/2-229 · 5331PL0813745 · +1 more
  17. O-RING NSN 5331-00-342-0557 P/N S9413-706 · S9413-706 · S9413-706 · S9413-706 · +1 more
  18. O-RING NSN 5331-00-341-6608 P/N 903-75-00 · AS568-903MILG23652TY2 · 3-3V587-9 · 903-75-00 · +1 more
  19. O-RING NSN 5331-00-340-4415 P/N 585514-2 · 585514-2 · 2-023-043 · 428-00 · +1 more
  20. O-RING NSN 5331-00-338-3993 P/N 110901PC9 · ARP568-12M1LG23652TY2 · ARP568-129MILG2 3652TY2 · V0674 2-129 · +1 more
  21. O-RING NSN 5331-00-327-4485 P/N 904-9259 · B55106-4 · BACP11H5 · B281-9-3-4 · +1 more
  22. O-RING NSN 5331-00-325-2713 P/N 152754 · 152754 · 10117086 · DW1654 · +1 more
  23. O-RING NSN 5331-00-324-7732 P/N 00489-045 F70 · LRC63047-16 · ST7M251-16 · CGR1601-0125-16 · +1 more
  24. O-RING NSN 5331-00-323-2817 P/N 5-056 · 5-056C873-70 · 5-056 C0873-70 · 5-056C147-70 · +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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