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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 5331-01-209-3794 P/N PRP916-19359 · 916-19359 · Y49021-916 · Y49080-916 · +6 more
  2. O-RING NSN 5331-01-209-0800 P/N MS28775-024 · MS28775-024 · 5331PL0658493 · MS28775-024 · +6 more
  3. O-RING NSN 5331-01-205-3173 P/N M83461/1-449 · AMS-P-83461/1 · M83461/1-449 · MIL-P-83461/1 · +6 more
  4. O-RING NSN 5331-01-204-3047 P/N 1354-085 · MIL-DTL-25988/4 · M25988/4-026 · MIL-R-25988/4 · +6 more
  5. O-RING NSN 5331-01-204-2183 P/N ASTM D2000-04 · AS568-460 2BG715B14E14E34E51E61 · AS568-460 · GR 2BG715B14E14E34E51E61 · +6 more
  6. O-RING NSN 5331-01-200-6291 P/N PRP118-11648 · 118-11648 · MIL-R-25988/4 · MIL-DTL-25988/4 · +6 more
  7. O-RING NSN 5331-01-194-8664 P/N PRP125-11648 · 125-11648 · MIL-R-25988/4 · MIL-DTL-25988/4 · +6 more
  8. O-RING NSN 5331-01-188-7636 P/N AMS7259D · AS3581-139 · MIL-R-83248/2 · M83248/2-139 · +6 more
  9. O-RING NSN 5331-01-187-9077 P/N 139-19357 · PRP139-19357 · AS3209-139 · 5330PL0213665 · +6 more
  10. O-RING NSN 5331-01-186-3498 P/N AS3581-047 · AMS7259 · AMS7259D · M83248/2-047 · +6 more
  11. O-RING NSN 5331-01-185-4678 P/N AS3581-247 · AMS7259D · M83248/2-247 · MIL-R-83248/2 · +6 more
  12. O-RING NSN 5331-01-185-2571 P/N M83461/1-135 · AMS-P-83461/1 · MIL-P-83461/1 · M83461/1-135 · +6 more
  13. O-RING NSN 5331-01-184-7576 P/N 125-19359 · AMS7259D · AS3581-125 · M83248/2-125 · +6 more
  14. O-RING NSN 5331-01-183-9169 P/N NAS1594-330 · AS3581-330 · M83248/2-330 · MIL-R-83248/2 · +6 more
  15. O-RING NSN 5331-01-183-8395 P/N 6219970245 · 453 8741-607 · 10398164 · 6219970245 · +6 more
  16. O-RING NSN 5331-01-183-0992 P/N AMS-P-83461/1 · M83461/1-025 · M83461/1-025 · MIL-P-83461/1 · +6 more
  17. O-RING NSN 5331-01-183-0984 P/N AMS-P-83461 · AMS-P-83461/1 · M83461/1-426 · MIL-P-83461/1 · +6 more
  18. O-RING NSN 5331-01-183-0969 P/N M83461/1-133 · AMS-P-83461/1 · M83461/1-133 · MIL-P-83461/1 · +6 more
  19. O-RING NSN 5331-01-178-6303 P/N M83461/1-149 · AMS-P-83461/1 · MIL-P-83461/1 · M83461/1-149 · +6 more
  20. O-RING NSN 5331-01-173-3644 P/N 3-905N756-75 · 07A568-905N · B86002-905N · M83461/2-905 · +6 more
  21. O-RING NSN 5331-01-170-9112 P/N 12630-012 · 12630-012 · S8057A7 · S8057A7 · +6 more
  22. O-RING NSN 5331-01-170-6286 P/N PRP452-8307 · 452-8307 · 422-114-520 · AS568-452 · +6 more
  23. O-RING NSN 5331-01-170-6283 P/N 2-162N219-7 · 2-162-N674-70 · 1N141300190 · 5L.6612.001.75 · +6 more
  24. O-RING NSN 5331-01-167-1586 P/N AS3581 · AMS7259D · MIL-R-83248/2 · M83248/2-241 · +6 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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