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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.

Filter

53,078 items

  1. O-RING NSN 5331-00-541-2632 P/N AS568-142 MIL-P-25732 DURO 70 · 12Z9026-42 · ARP568-142MILP5 51670DUR0 · 199821 · +4 more
  2. O-RING NSN 5331-00-531-2339 P/N 0568-005 · MS29513-005 · 2661058B005 · MS29513-005 · +4 more
  3. O-RING NSN 5331-00-530-3394 P/N 831727REVKPT23 · 100 5-8 · 802-099-5-8 · 1602321-5 · +4 more
  4. O-RING NSN 5331-00-515-3827 P/N PRP902-21-233-70 · D95001-216 · 1017195 · AMS3209 · +4 more
  5. O-RING NSN 5331-00-515-3439 P/N PRP914-31-711-70 · 5331PL1377487 · 767-00 · ARP568-131MILP5 516-70DURM · +4 more
  6. O-RING NSN 5331-00-501-9702 P/N AS3582-145 · 5331PL2202090 · MS9068-145 · MS9068-145ES · +4 more
  7. O-RING NSN 5331-00-500-3480 P/N PRP568-474-4024-65 · AS3578-474 · MS9021-474 · 632500-474 · +4 more
  8. O-RING NSN 5331-00-498-5806 P/N 92445-52 · 376722 · MIL-DTL-25988/1 · MILR25988 · +4 more
  9. O-RING NSN 5331-00-498-5737 P/N M25988/1-119 · MIL-DTL-25988/1 · MILR25988 · 5331PL0657015 · +4 more
  10. O-RING NSN 5331-00-494-2477 P/N MS28775-266 · MIL-P-25732 · 2-266 N304-75 · 2-266 N-304-75 · +4 more
  11. O-RING NSN 5331-00-480-3712 P/N 82005520-005 · 82005520-005 · 82005520-005 · 82005520-005 · +4 more
  12. O-RING NSN 5331-00-480-1844 P/N 013-9078D · PRP568-013LA823-70 · PRP568-013-805-70 · 121-00013-14 · +4 more
  13. O-RING NSN 5331-00-469-8288 P/N 2-123E515-8 · PRP568-123 5611-80 · SM-C-773504-9 · AS568-123 E59 · +4 more
  14. O-RING NSN 5331-00-463-0327 P/N AS3582-215 · MS9068-215 · 2-215 S604-70 · 2-215S604-70 · +4 more
  15. O-RING NSN 5331-00-462-0907 P/N 11639519-2 · 11639519 · 2AT412 · 5331PL0651023 · +4 more
  16. O-RING NSN 5331-00-453-9386 P/N AS3582-132 · MS9068-132 · MS9068-132ES · S0604 2-132 · +4 more
  17. O-RING NSN 5331-00-450-7390 P/N PRP152-7507 · 152-7507 · 152-8307 · 10501649 · +4 more
  18. O-RING NSN 5331-00-450-3666 P/N S9413-229 · S9413-229 · 5331PL0963938 · S9413-229 · +4 more
  19. O-RING NSN 5331-00-443-5760 P/N MS9386-016 · 5331PL0844981 · 5331PL1890212 · MS9386-016 · +4 more
  20. O-RING NSN 5331-00-435-5730 P/N 590883 · 590883 · 590883 · 590883 · +4 more
  21. O-RING NSN 5331-00-425-2021 P/N 6871091-06 · 6871091-06 · MS9966-06 · 5331PL0211458 · +4 more
  22. O-RING NSN 5331-00-424-3844 P/N 20269FN23 · 20269FN22 · A6689-244-142 · 8731 PC 41 · +4 more
  23. O-RING NSN 5331-00-421-9428 P/N S9412-518 · S9412-518 · S9412-518 · S9412-518 · +4 more
  24. O-RING NSN 5331-00-421-9427 P/N S9412-516 · S9412-516 · S9412-516 · S9412-516 · +4 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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