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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 5331-00-851-2186 P/N 2938-3 · SAE AMS7274 · SAE AS568-012 · 2938-3 · +2 more
  2. O-RING NSN 5331-00-849-6726 P/N AS3582-251 · MS9068-251 · AS3582-251 · MS9068-251 · +2 more
  3. O-RING NSN 5331-00-847-2860 P/N 0R4-24 · 708560R1 · 708560R1 · 708560R1 · +2 more
  4. O-RING NSN 5331-00-846-4999 P/N 221-8309 · N0552 2-221 · 602-02726 · 221-8299 · +2 more
  5. O-RING NSN 5331-00-846-1956 P/N AS3551-224 · 5331PL1013228 · MS9241-224 · MS29561-224 · +2 more
  6. O-RING NSN 5331-00-846-1592 P/N AS3551-231 · MS9241-231 · MS9241-231ES · MS9241-231 · +2 more
  7. O-RING NSN 5331-00-846-1591 P/N AS3551-230 · 5331PL0828796 · MS9241-230 · MS9241-230ES · +2 more
  8. O-RING NSN 5331-00-845-8342 P/N AE25C85 · AS568-568 · AMS3303 · MIL-STD-413 · +2 more
  9. O-RING NSN 5331-00-844-2447 P/N MS29561-241 · 890394-46 · 645001U241E · 5330008442447 · +2 more
  10. O-RING NSN 5331-00-843-4612 P/N PRP568-274-4024-65 · AS3578-274 · MS9021-274 · MS9021-274ES · +2 more
  11. O-RING NSN 5331-00-843-1134 P/N 69890-154 · PRP568-141-4024-25 · AS3578-141 · MS9021-141 · +2 more
  12. O-RING NSN 5331-00-843-0013 P/N 1A1800AG296 · Q58500 · 296-G · R58500 · +2 more
  13. O-RING NSN 5331-00-842-8170 P/N S8990-18 · S8990-18 · S8990-18 · S8990-18 · +2 more
  14. O-RING NSN 5331-00-841-9282 P/N 4400461-1170 · J200AH117 · 500000-0117-002 8 · 2-117B612-7 · +2 more
  15. O-RING NSN 5331-00-841-4817 P/N AS3569-131 · AMS7270 · A25141-131 · AS3569-131 · +2 more
  16. O-RING NSN 5331-00-837-5423 P/N ARP568-016-9357 · 216684PC7 · J200AH16 · 670-50016 · +2 more
  17. O-RING NSN 5331-00-836-4390 P/N 914-39 · 139-711-70AN · WE7 · WA3368H07 · +2 more
  18. O-RING NSN 5331-00-836-2748 P/N 1D1346 · 1D134606992 · 1D1134606992 · 1D1346-06992 · +2 more
  19. O-RING NSN 5331-00-834-3509 P/N 131-8-37 · AS568-154 · 2-154N109-70 · N0109 2-154 · +2 more
  20. O-RING NSN 5331-00-834-1252 P/N S8990-521 · 114950-121 · S8990-521 · 114950-121 · +2 more
  21. O-RING NSN 5331-00-832-1545 P/N J-3E48837 PIECE 50 · AN6230-43 · H33P1561-985 · 7093E66 PIECE 50 · +2 more
  22. O-RING NSN 5331-00-829-2861 P/N GA100213 · GA 100213 · GA100213 · GA100213 · +2 more
  23. O-RING NSN 5331-00-829-2606 P/N AS3582-233 · MS9068-233 · S0604 2-233 · 2-233 S604-70 · +2 more
  24. O-RING NSN 5331-00-829-2581 P/N 1407-40 · 1407-35 · 1407-40 · 4015-53 · +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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