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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 5331-00-726-4152 P/N MS29561-017 · 4152-7017 · A17TH1006 · MS29561-017 · +8 more
  2. O-RING NSN 5331-00-717-3981 P/N 7866-226 · 909-4-8186 · 287-1159P82 · 457-60-226 · +8 more
  3. O-RING NSN 5331-00-714-5264 P/N 15868 · 25K60116 · 5427-28 · 682241BJ · +8 more
  4. O-RING NSN 5331-00-702-7062 P/N MIL-R-25988/1 · M25988/1-008 · 2-008E515-8 · MIL-DTL-25988/1 · +8 more
  5. O-RING NSN 5331-00-702-4715 P/N PRP902-18-142-70 · 213-1467 · GD80A1407-23 · MS29561-213 · +8 more
  6. O-RING NSN 5331-00-690-9594 P/N 61245-2-210 · 6227-15 · MS29561-210 · 5331PL0144052 · +8 more
  7. O-RING NSN 5331-00-684-1185 P/N 1820-77 · PRP568-450-4067-70 · MS28775-450 · MS28775-450 · +8 more
  8. O-RING NSN 5331-00-663-7671 P/N 306A811REVA · 271-6709-958286ALT1PC12 · 3267025REVA · 271-6709-958287ALT1PC12 · +8 more
  9. O-RING NSN 5331-00-663-5254 P/N S14-148 · 14191 · 127562 · 032214 · +8 more
  10. O-RING NSN 5331-00-649-9129 P/N N90-81605 · N881PC6 · 040-0100-00-0 · 450330-1 · +8 more
  11. O-RING NSN 5331-00-641-1450 P/N AS3570-232 · AN123892 · AN123892 · A232HH · +8 more
  12. O-RING NSN 5331-00-614-9399 P/N S14-124 · 14190 · AB009041962 · AB009041962 · +8 more
  13. O-RING NSN 5331-00-606-9841 P/N AS568-230 · 5331PL0795199 · 4230-53 · P39-433MPC7 · +8 more
  14. O-RING NSN 5331-00-600-5041 P/N PRP568-026-4024-65 · AS3578-026 · 5331PL0896516 · MS9021-026 · +8 more
  15. O-RING NSN 5331-00-599-2180 P/N 7374386 · 6761626 · HR166-282 · 6761626 · +8 more
  16. O-RING NSN 5331-00-599-2029 P/N 1407-32 · WW330REVKPC35 · 607-22710 · WW330REVKPC35 · +8 more
  17. O-RING NSN 5331-00-599-0979 P/N 7866-446 · 10V60-141-446 · 457-60-446 · RT253-65-446 · +8 more
  18. O-RING NSN 5331-00-595-6330 P/N 2-030 N0674-70 · A20439 · AS568-030 · ASTMD2000M2BG714B14EA14EF1 · +8 more
  19. O-RING NSN 5331-00-585-1065 P/N PRP902-11-142-70 · PRP113-1487 · 113-1487 · MS29561-113 · +8 more
  20. O-RING NSN 5331-00-584-1590 P/N 40240PC68 · 322314 ITEM 137 · M383-10 · M383-10 · +8 more
  21. O-RING NSN 5331-00-584-1225 P/N 182389 · 69890-117 · PRP568-126-4024-65 · AS3578-126 · +8 more
  22. O-RING NSN 5331-00-580-9765 P/N PRP568-248-4024-65 · AS3578-248 · 5331PL0963021 · MS9021-248 · +8 more
  23. O-RING NSN 5331-00-580-8059 P/N 287-1166P99 · 199783 · PRP568-212-4024-65 · AS3578-212 · +8 more
  24. O-RING NSN 5331-00-579-3157 P/N 4762798 · PRP568-349-4067-70 · MS28775-349 · MS28775-349 · +8 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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