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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 5331-00-995-8445 P/N BACP11P228 · 060959-228 · A228SR270-70 · A228SR270-70 · +2 more
  2. O-RING NSN 5331-00-990-3979 P/N AS3582-134 · MS9068-134 · 2-134S604-70 · SAE-AS3582 · +2 more
  3. O-RING NSN 5331-00-990-2591 P/N 012-8307 · 4400172-0120 · 225444PC64 · J200AS12 · +2 more
  4. O-RING NSN 5331-00-989-5588 P/N 7076E54PC75 · 11-456-7446-70 · MIL-STD-417 · MIL-R-3065 · +2 more
  5. O-RING NSN 5331-00-989-4688 P/N 32-21483B03 · 2-041S613-6 · 32-21483B03 · 25626083-38 · +2 more
  6. O-RING NSN 5331-00-989-4118 P/N 1065300G1 · 1065300-1 · 1065300G1 · AMS3303-006ES · +2 more
  7. O-RING NSN 5331-00-988-1987 P/N MS28775-454 · 5331PL0810210 · MS28775-454 · 2300-79269 · +2 more
  8. O-RING NSN 5331-00-988-0973 P/N 69890-245 · 69890-245 · 69890-245 · 69890-245 · +2 more
  9. O-RING NSN 5331-00-984-7871 P/N 571008 · 571007 · 571006 · 640561 · +2 more
  10. O-RING NSN 5331-00-984-7194 P/N BACP11P110 · 060959-110 · A110SR270-70 · MILR25897-110ES · +2 more
  11. O-RING NSN 5331-00-984-5666 P/N 129-711-70 · 114HS441-6 · 11-129-7474-70 · 2-129PS1-30-5 · +2 more
  12. O-RING NSN 5331-00-984-1986 P/N 910660-158 · AS568-158 · 910660-158 · RWS-568-158 · +2 more
  13. O-RING NSN 5331-00-984-1983 P/N 910660-160 · AS568-160 · 910660-160 · 3510-0059-051 · +2 more
  14. O-RING NSN 5331-00-984-1330 P/N F3450R · 2-333-N674.70 · CVA64-203-13576 82PN18 · 2-333 N674-7 · +2 more
  15. O-RING NSN 5331-00-983-8197 P/N AS568-011AMS3209 · AS568-011AMS3209 · AS568-011AMS3209CP · AS568-011AMS3209 · +2 more
  16. O-RING NSN 5331-00-983-7786 P/N 017-711-70 · 114HS441-3 · 11-017-7474-70 · 2-17PS1-30-5 · +2 more
  17. O-RING NSN 5331-00-983-0353 P/N D 2000 · AS568 · R1306-6 · 2-006 L449-60 · +2 more
  18. O-RING NSN 5331-00-981-4043 P/N 471247 · 471247 · 471247 · 471247 · +2 more
  19. O-RING NSN 5331-00-973-1412 P/N 5117962 · 5117962A · 5117962 · 5117962 · +2 more
  20. O-RING NSN 5331-00-972-9254 P/N 11020-7100-7 · J200AB20 · 4400871-0200 · 2-020P642-70 · +2 more
  21. O-RING NSN 5331-00-968-5388 P/N 4F8824 · 4F8824 · 4F8824 · 2-327 N951-75 · +2 more
  22. O-RING NSN 5331-00-965-9893 P/N 76NC014 · RW0707CK2 · ARP568-014MILP5 516-90 · ARP568-014MILP5 516-90DUR0 · +2 more
  23. O-RING NSN 5331-00-964-6318 P/N 155215 · 155215 · 9028238 · 2M879 · +2 more
  24. O-RING NSN 5331-00-959-1046 P/N AS568-121 · AMS-R-6855 CL 1 GR 60 · MIL-STD-413 · 7241-104-2 · +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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