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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 5331-01-033-2717 P/N PRP568-352-4067-70 · MS28775-352 · AS568-352MIL-P-5516 · 5331PL0810169 · +7 more
  2. O-RING NSN 5331-01-031-8222 P/N 2-020N674-70 · 2507294-12 · 2507294-12 · P-ZLAB-0041193 · +7 more
  3. O-RING NSN 5331-00-760-5719 P/N 020-11307 · AS3582-020 · MS9068-020 · AS3582-020 · +7 more
  4. O-RING NSN 5331-00-756-2004 P/N N0674-70-2-250 · PRP568-250-4024-65 · AS3578-250 · 00491B · +7 more
  5. O-RING NSN 5331-00-752-8804 P/N 7866-132 · 457-60-132 · AS29513-132 · 1793-132 · +7 more
  6. O-RING NSN 5331-00-737-6758 P/N 7376758 · 6760496 · 6760496 · 7376758 · +7 more
  7. O-RING NSN 5331-00-724-8476 P/N BACP11K8 · R1131-908 · BACP11K8 · 3-908-S383-70 · +7 more
  8. O-RING NSN 5331-00-720-3228 P/N PRP568-448-4067-70 · 02195-5701-40 · MS28775-448 · MILP25732 · +7 more
  9. O-RING NSN 5331-00-716-6416 P/N 9686P06 · SAE-AS568 · SAE-AS568-006 · 2-006C873-70 · +7 more
  10. O-RING NSN 5331-00-689-6486 P/N 22-38646 PC 13 · 500496-3 · 2-211-E515-8 · 2-211 E515-80 · +7 more
  11. O-RING NSN 5331-00-641-3345 P/N 1916149 · 1916149 · 118911 · 920G1 · +7 more
  12. O-RING NSN 5331-00-640-9161 P/N 1756018 · AS568-21 · 800-030-10 · PD5330-217-17 · +7 more
  13. O-RING NSN 5331-00-634-9394 P/N PRP914-11-711-70 · 204-274 · 5331PL1279780 · PD5330-217-19 · +7 more
  14. O-RING NSN 5331-00-589-8114 P/N PRP568-28-4024-65 · AMS7271 · AS3578-928 · MIL-STD-129 · +7 more
  15. O-RING NSN 5331-00-585-4500 P/N 67G190-20 · 69890-20 · PRP568-215-4024-65 · 67G190-20 · +7 more
  16. O-RING NSN 5331-00-584-1229 P/N 182384 · 69890-136 · PRP568-118-4024-65 · AS3578-118 · +7 more
  17. O-RING NSN 5331-00-582-2577 P/N 557S12 · PRP568-12-4024-65 · AS3578-912 · 5331PL0812414 · +7 more
  18. O-RING NSN 5331-00-582-2572 P/N PRP568-20-4-24-65 · PRP568-920-4024-65 · AS3578-920 · MS9020-20 · +7 more
  19. O-RING NSN 5331-00-580-9763 P/N PRP568-238-4024-65 · MP2292-5 · AS3578-238 · 751-5513-001 · +7 more
  20. O-RING NSN 5331-00-561-8122 P/N B44828 · BG320-301 · 44828 · B44828 · +7 more
  21. O-RING NSN 5331-00-558-1901 P/N AS568-904 · AS568-904 · AMS3212 · 5331PL1076491 · +7 more
  22. O-RING NSN 5331-00-556-7506 P/N NAS1594-151 · AS3851-151 · AS3581-151 · AMS7259 · +7 more
  23. O-RING NSN 5331-00-550-7099 P/N 182386 · 69890-119 · PRP568-122-4024-65 · AS3578-122 · +7 more
  24. O-RING NSN 5331-00-550-7098 P/N PRP568-031-4024-65 · AS3578-031 · 5331PL1279427 · 9021-31 · +7 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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