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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 5331-01-194-4710 P/N 750420107 · 750420107 · P998012 · PL104933001-2-25 · +2 more
  2. O-RING NSN 5331-01-193-1617 P/N MS29512-01 · MS29512-01 · MS29512-01 · MS29512-01 · +2 more
  3. O-RING NSN 5331-01-191-2958 P/N MIL-R-25988 TY1 CL1 GR80 · MIL-DTL-25988/4 · M25988/4-161 · MIL-R-25988/4 · +2 more
  4. O-RING NSN 5331-01-191-0485 P/N PRP568-026-376-40 · AS568-026AMS3240 · 414193-118 · C0356 2-026 · +2 more
  5. O-RING NSN 5331-01-190-2224 P/N 1354-162 · MIL-R-25988/4 · M25988/4-033 · MIL-DTL-25988/4 · +2 more
  6. O-RING NSN 5331-01-187-7978 P/N NAS1613 · NAS1612-3 · NAS1612-3A · NAS1612-3A · +2 more
  7. O-RING NSN 5331-01-187-5326 P/N 5-712N602-70 · 5-712N602-70 · 7686-10927 · 7686-10927-001 · +2 more
  8. O-RING NSN 5331-01-187-0461 P/N N-527285 PIECE 17 · H13689 · B-1728-V · N-527285 PIECE 17 · +2 more
  9. O-RING NSN 5331-01-186-7528 P/N 28904-6 · 28904-6 · 28904-6 · 28904-6 · +2 more
  10. O-RING NSN 5331-01-185-8700 P/N A6689-906-303 · 9601 PIECE 4 · A6689.906.303 · A6481.906.144 · +2 more
  11. O-RING NSN 5331-01-185-6305 P/N MS9386-266 · 5331PL2046787 · MS9386-266 · 10425745 · +2 more
  12. O-RING NSN 5331-01-183-3157 P/N 510-260 · 18-18 · 5331PL0719923 · 10332401 · +2 more
  13. O-RING NSN 5331-01-183-3154 P/N 520-029 · 18-81B · DP5518 · DP5518 · +2 more
  14. O-RING NSN 5331-01-182-8669 P/N MS28775-467 · MS28775-467 · 2-467N304-7 · N0304 2-467 · +2 more
  15. O-RING NSN 5331-01-181-4953 P/N 16410261 · 16101261 · 16400561 PIECE 28 · 16410261 · +2 more
  16. O-RING NSN 5331-01-181-2432 P/N 60K30012 · 13803621-5 · 60K-30012 · 60K-30012 · +2 more
  17. O-RING NSN 5331-01-180-8947 P/N MS28775-167 · MS28775-167 · AS568-167-36624 · 2-167N304-70 · +2 more
  18. O-RING NSN 5331-01-176-7915 P/N 8201-20 · 8201-20 · 8202-14 · 8201-20 · +2 more
  19. O-RING NSN 5331-01-176-3924 P/N 853-0887-001 · 853-08887-000 · 633-8304 ITEM 57 · 853-8887 · +2 more
  20. O-RING NSN 5331-01-176-1354 P/N 3536928-733 · 60.08.336 · 3536928-733 · 91906-991 · +2 more
  21. O-RING NSN 5331-01-173-8782 P/N 11200187-5 · 876662-00 · 0.489X.070-70 BU · B0612 2-014 · +2 more
  22. O-RING NSN 5331-01-173-3417 P/N P-82015-8 ITEM 27 · P-82016-013 · 58201515 · P-82015-016 · +2 more
  23. O-RING NSN 5331-01-173-0154 P/N 6170170260 · 4537800-233 · 6170170260 · 4537800-233 · +2 more
  24. O-RING NSN 5331-01-172-4649 P/N 0059975245 · 4536226-824 · 0059975245 · 4536226-824 · +2 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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