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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 5331-01-068-4606 P/N 107170 · MS9770-110 · MS9770-110 · MS9770-110 · +2 more
  2. O-RING NSN 5331-01-066-4455 P/N MS9967-012 · MS9967-012 · MS9967-012ES · AS9967-012 · +2 more
  3. O-RING NSN 5331-01-066-3546 P/N 6305-53 PC51 MI · 609-4676623ITEM 32 · 609-4676623 ITE · 54-60-0873 · +2 more
  4. O-RING NSN 5331-01-066-1921 P/N MIL-DTL-25988/1 · MIL-R-25988/1 · M25988/1-903 · 5331PL0658326 · +2 more
  5. O-RING NSN 5331-01-065-2274 P/N 24627 · 011.08307 · 011.08307 · AS568-011-10V70-115 · +2 more
  6. O-RING NSN 5331-01-063-1768 P/N PRP-568-237-19357 · PRP-568-237 · 45398 · 45398 · +2 more
  7. O-RING NSN 5331-01-062-4466 P/N M83248/1-010 · M83248-1-010CP · 281712-0001 ITEM 62CP · 4405591-0103CP · +2 more
  8. O-RING NSN 5331-01-061-7370 P/N 228303AW17 · 5005-59 · 228303AW REF 17 · 4010-59 · +2 more
  9. O-RING NSN 5331-01-061-0925 P/N 2-142 N674-70 · 01561C0031-8 · M83461/1-142 · 2-142N674-70 · +2 more
  10. O-RING NSN 5331-01-059-1659 P/N AS568-236 · AS568-2236 · MIL-STD-81349 · 2-236C557-70 · +2 more
  11. O-RING NSN 5331-01-057-3136 P/N S8990-028 · S8990-28 · S8990-28 · S8990-028 · +2 more
  12. O-RING NSN 5331-01-057-3135 P/N S8990-019 · S8990-019 · S8990-019 · S8990-019 · +2 more
  13. O-RING NSN 5331-01-056-0189 P/N 264796-001 · AS568B · N0506 2-029 · 2-029N506-65 · +2 more
  14. O-RING NSN 5331-01-055-3874 P/N 73-8038-037A · AS3582-327 · MS9068-327 · 73-8038-037A · +2 more
  15. O-RING NSN 5331-01-054-9762 P/N S9026K008 · S9026K008 · S9026K008 · S9026K008 · +2 more
  16. O-RING NSN 5331-01-054-2585 P/N NAS1593-016 · SAE-AS568-016CP · M83248/1-016 · 5330010542585 · +2 more
  17. O-RING NSN 5331-01-051-2497 P/N AS3085-241 · 2-241V747-75 · 748428 · V0747 2-241 · +2 more
  18. O-RING NSN 5331-01-050-3840 P/N AS568-128MILG23652TY2 · 10502 ITEM 40 · V0764 2-128 · 10502 ITEM 40 · +2 more
  19. O-RING NSN 5331-01-050-1534 P/N MS29513-20 · 5331PL0639040 · MS29513-20 · MS29513-20 · +2 more
  20. O-RING NSN 5331-01-049-9186 P/N AS568-327/M2BF714B34E014E034 · 2-327 N674-70 · 2-327N70 · 2-327-N674-70 · +2 more
  21. O-RING NSN 5331-01-048-4991 P/N 82749 ITEM 9 · 75972-153 · AS568-153/M2AA810A13EA14F17 · 2-153 E540-80 · +2 more
  22. O-RING NSN 5331-01-047-7710 P/N 5331PL1246723 · 44762-076-6 · 44762-076-00-6 · 44762-076-00-6 · +2 more
  23. O-RING NSN 5331-01-046-5406 P/N MS9967-280 · MS9967-280 · MS9667-280 · AS9967-280 · +2 more
  24. O-RING NSN 5331-01-046-5219 P/N 10-1810-69 · 10-1810 ITEM 69 · 2-206N131-70 · 2-206N0674-70 · +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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