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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 5331-00-935-9202 P/N 7866-050 · 60-P-31-050 · PZ-1775-050 · 10V60-141-050 · +16 more
  2. O-RING NSN 5331-00-827-0326 P/N AS28778-28 · 7799-28 · F-14260-28 · MS28778-28 · +16 more
  3. O-RING NSN 5331-00-814-2347 P/N 6-10-65 · 31HCS18PC145 · 31FCS22PC145 · 31HCS21PC145 · +16 more
  4. O-RING NSN 5331-00-765-1948 P/N 015-11647 · 015-1393-70 · M25988/1-015 · MIL-DTL-25988/1 · +16 more
  5. O-RING NSN 5331-00-762-9964 P/N M83248/1-108 · 6860255 · M83248/1-108 · AS3209-108 · +16 more
  6. O-RING NSN 5331-01-398-9015 P/N 032-711-70 · 845-2445100PC21,1.00IN · M83461/1-032 · M83461/1-032 · +16 more
  7. O-RING NSN 5331-01-078-6452 P/N 337-11647 · PRP337-11646 · 337-11646 · PRP568-337-1133-60 · +16 more
  8. O-RING NSN 5331-01-067-3449 P/N 60-P-31-383 · PX1775-383 · 10V60-141-383 · PRP568-383-457-60 · +16 more
  9. O-RING NSN 5331-01-062-4731 P/N 5876A92 · 5876A502 · 7052637-02 · 1067878-138 · +16 more
  10. O-RING NSN 5331-01-046-3299 P/N 845-6603285ITEM9 · 6LTR&2.5GAL WTR&FM PL-ITEM NO-21 · 05690-P · 080-04273-21 · +16 more
  11. O-RING NSN 5331-01-031-8212 P/N 2507294-62 · 52068HPC7 · 5559922-273 · 25K40924 · +16 more
  12. O-RING NSN 5331-00-684-2063 P/N 007-7188 · 902-2-7188 · PX1775-7 · 457-60-7 · +16 more
  13. O-RING NSN 5331-00-633-4535 P/N S7-22 · 2H3932 · 15864 · IPD2H3932 · +16 more
  14. O-RING NSN 5331-00-599-0977 P/N 7866-448 · 60-P-31-448 · PX1775-448 · 10V60-141-448 · +16 more
  15. O-RING NSN 5331-00-598-8032 P/N 7866-14 · 60-P-31-14 · PZ-1775-14 · 10V60-141-14 · +16 more
  16. O-RING NSN 5331-00-585-1066 P/N 114-1487 · 90B83 · S8057V12 · S8057V12 · +16 more
  17. O-RING NSN 5331-00-584-0150 P/N 1557052-25 · 905-5-142-70 · 102A10001-16 · PRP1847-905 · +16 more
  18. O-RING NSN 5331-00-579-7912 P/N PRP568-345-4067-70 · 4088931 · MS28775-345 · 5331PL0810159 · +16 more
  19. O-RING NSN 5331-00-579-7542 P/N 445-846-70 · PRP445-7377 · 445-7377 · RWS-568-445 · +16 more
  20. O-RING NSN 5331-00-554-0990 P/N AS3209-255 · MILR83248 · M83248/1-255 · MIL-R-83248/1 · +16 more
  21. O-RING NSN 5331-00-492-0575 P/N D2000-M2AA810A13E14F17 · AS568B-129 · 5331PL1279396 · 810-4384536-51A 30 · +16 more
  22. O-RING NSN 5331-00-486-3404 P/N 287-6008P016 · MIL-DTL-25988/1 · MIL-R-25988/1 · M25988/1-016 · +16 more
  23. O-RING NSN 5331-00-433-9631 P/N 766-283 · 7866-283 · 60-P-31-283 · PX1775-283 · +16 more
  24. O-RING NSN 5331-00-419-0749 P/N 2HB263 · 9HB263 · 9HB263 · AS568-011 · +16 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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