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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 5331-00-849-8352 P/N PRP568-131-1235-70 · AS3582-131 · MS9068-131 · AS3582-131 · +1 more
  2. O-RING NSN 5331-00-849-6720 P/N AS3582-235 · MS9068-235 · 2-235 S604-70 · AS3582-235 · +1 more
  3. O-RING NSN 5331-00-848-0971 P/N 5695061 · 5686546 · 5686546 · 182MHK1 · +1 more
  4. O-RING NSN 5331-00-847-5803 P/N 346895R1 · 15689 · 346895R1 · 346 895 R1 · +1 more
  5. O-RING NSN 5331-00-846-9224 P/N A628006-B · 300258 · 214-276-270 · 720130 · +1 more
  6. O-RING NSN 5331-00-845-9552 P/N S8990-564 · S8990-564 · 5331PL1951265 · S8990-564 · +1 more
  7. O-RING NSN 5331-00-845-9044 P/N V999PZB1000PC4 · R-246PC15 · 34566C4 · 11-226 · +1 more
  8. O-RING NSN 5331-00-845-0917 P/N S8057AY108 · S8057AY108 · S8057AY108 · S8057AY108 · +1 more
  9. O-RING NSN 5331-00-844-5315 P/N S8469M19 · S8057AP19 · S8469M19 · S8057AP19 · +1 more
  10. O-RING NSN 5331-00-844-3220 P/N 20399 · 44A256667P2 · 5427-3 · 8008 · +1 more
  11. O-RING NSN 5331-00-843-9720 P/N 343943R1 · 343943R1 · 343943R1 · 343943R1 · +1 more
  12. O-RING NSN 5331-00-843-2464 P/N 328376 · 328376 · 328376 · 328376 · +1 more
  13. O-RING NSN 5331-00-843-1507 P/N 328419 · 328419 · 328419 · S0604 A3357-111 · +1 more
  14. O-RING NSN 5331-00-839-2661 P/N MIL-DTL-22050 · MILG22050 · M22050-1-329 · 602J615-29 · +1 more
  15. O-RING NSN 5331-00-839-1802 P/N ARP568-038MILP25732 · 7446-70-11-038 · 5001599-04 · N0304 2-038 · +1 more
  16. O-RING NSN 5331-00-836-3820 P/N 441-9357 · 670-50441 · 2-441E529-6 · 441 · +1 more
  17. O-RING NSN 5331-00-834-8645 P/N 2236338 · 588.10-300000-010 · 5330008348645 · 2236338 · +1 more
  18. O-RING NSN 5331-00-834-7100 P/N L343-002-501 · 1264-1293 · 213-050306 · 213-050306-00-2303 · +1 more
  19. O-RING NSN 5331-00-833-6907 P/N 1407-09 · S7-5 · 2938-1 · MR06227-1-4 · +1 more
  20. O-RING NSN 5331-00-831-6643 P/N AS568-138 · AMS7259 · AMS7259 · AS568-138 · +1 more
  21. O-RING NSN 5331-00-831-2438 P/N FS52527U · 35704663 · 35704665 · 37704663 · +1 more
  22. O-RING NSN 5331-00-829-9924 P/N 2-9N219-7 · 2-9 N674-7 · 2-9N219-7 · 200-1286-00 · +1 more
  23. O-RING NSN 5331-00-829-2858 P/N GA 100215 · GA100215 · GA100215 · GA100215 · +1 more
  24. O-RING NSN 5331-00-829-1653 P/N GA 100108 · GA100108 · GA100108 · GA100108 · +1 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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