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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 5331-00-826-6374 P/N PRP568-249-4024-65 · AS3578-249 · MS9021-249 · MS9021-249 · +3 more
  2. O-RING NSN 5331-00-826-6373 P/N PRP568-263-4024-65 · AS3578-263 · MS9021-263 · 2-263 N506-65 · +3 more
  3. O-RING NSN 5331-00-826-3368 P/N J228P113 · J228P113 · 5331PL0166395 · J228P113 · +3 more
  4. O-RING NSN 5331-00-826-2872 P/N J228P024 · J228P024 · J228P024 · 10117123 · +3 more
  5. O-RING NSN 5331-00-825-8369 P/N 5331PL0166394 · J228P012 · J228P012 · J228P012 · +3 more
  6. O-RING NSN 5331-00-825-1430 P/N 73682-64X4PC16 · 73553-60X5PC14 · 73682-64X5PC15 · 73682-33X9PC22 · +3 more
  7. O-RING NSN 5331-00-820-2685 P/N HS2-513-120 · PRP568-120DC675 · 29513-120DC675 · 2-13S424-7 · +3 more
  8. O-RING NSN 5331-00-819-3858 P/N 005-0028-61 · D248PC16 · 593-516-1862914SH2PC4 · 593-513-1862821AEPC1 · +3 more
  9. O-RING NSN 5331-00-818-4356 P/N PRP568-458-4067-70 · MS28775-458 · MS28775-458 · N0304 2-458 · +3 more
  10. O-RING NSN 5331-00-818-0223 P/N A-005TH1217 · AS3582-005 · MS9068-005 · 2-005 S604-70 · +3 more
  11. O-RING NSN 5331-00-817-7783 P/N R-RING/0-7-442 · 6305391-73 · 22019-442 · AS568C-144 · +3 more
  12. O-RING NSN 5331-00-816-4714 P/N AMS7270 · AS568-242 · 2-242N179-70 · 47738-20 · +3 more
  13. O-RING NSN 5331-00-815-3508 P/N MS29561-235 · 2-235 N4771-70 · 10497738 · MS29561-235 · +3 more
  14. O-RING NSN 5331-00-812-1373 P/N PRP568-258-4024-65 · AS3578-258 · MS9021-258 · 2-258 N506-65 · +3 more
  15. O-RING NSN 5331-00-811-8919 P/N 909-3AND907-70 · AS568B-225 · AS568-225 · MIL-DTL-22050 · +3 more
  16. O-RING NSN 5331-00-811-2747 P/N 285722R1 · 290028R1 · 69494C226 · 69896-4 · +3 more
  17. O-RING NSN 5331-00-810-1282 P/N 10106465-2 · 10106465 · 10106465-2 · 10106465 · +3 more
  18. O-RING NSN 5331-00-809-3816 P/N A-A-55549 · AA55549-16 · AA55549 · MS90064-16 · +3 more
  19. O-RING NSN 5331-00-808-5004 P/N 9524796 · 9524796 · 9524796 · 5331PL0829187 · +3 more
  20. O-RING NSN 5331-00-807-9637 P/N MS29561-247 · MS29561-247 · MS29561-247 · 2-247 N4771-70 · +3 more
  21. O-RING NSN 5331-00-807-5744 P/N R1309-133 · R1309-133 · R1309P133 · R1309-133 · +3 more
  22. O-RING NSN 5331-00-807-4355 P/N PRP568-451-4024-65 · AS3578-451 · MS9021-451 · 2-451 N506-65 · +3 more
  23. O-RING NSN 5331-00-806-7027 P/N 2002325 · A500-36 · AM2003 · 10440888 · +3 more
  24. O-RING NSN 5331-00-806-1815 P/N 24498 · 1281383 · SP100-5 · 500000-0010-0002 · +3 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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