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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 5331-01-285-0670 P/N MS28775-342 · PL-11761-F-18ITEM456A · MS28775-342 · SAE-AS28775 · +2 more
  2. O-RING NSN 5331-01-285-0481 P/N ON65239.53.68 · OT65239.53.68 · OT65239.53.68 · ON65239.53.68 · +2 more
  3. O-RING NSN 5331-01-283-2435 P/N B906 SR8024-70 · 2-906N918-70 · N0918 3-906 · 3-906N918-70 · +2 more
  4. O-RING NSN 5331-01-282-8208 P/N 29771-137 · 29771-137 · CWK-619-76 PIECE 14 · CWK-619-76 PIECE 14 · +2 more
  5. O-RING NSN 5331-01-282-7524 P/N US-70589-1 ITEM 29 · H-45112-3-2462 · H-45112-3-2462 · US-70589-1 ITEM 29 · +2 more
  6. O-RING NSN 5331-01-282-4801 P/N A-117SR8024-70 · A-117SR8024-70 · 2-117N918-70 · N0918 2-117 · +2 more
  7. O-RING NSN 5331-01-282-0118 P/N 215-4642224ITEM1-26 · 215-4642224ITEM2-26 · MS28775-462 · MS28775-462 · +2 more
  8. O-RING NSN 5331-01-281-7676 P/N 906F054PC25 · NAS1601-010 · NAS1613 · NAS1611-010 · +2 more
  9. O-RING NSN 5331-01-280-7505 P/N V092845 · 02466 · B8-0002-1 ITEM 10 1/4IN · V092845 · +2 more
  10. O-RING NSN 5331-01-280-5579 P/N 13803662-9 · 60K-40624 · T759-001-012 · 13803662-9 · +2 more
  11. O-RING NSN 5331-01-279-3363 P/N AS3085-035 · OR56,87X1,78 2-035 V747-75 · 2-035 V747-75 · 2-035 V747-75 · +2 more
  12. O-RING NSN 5331-01-278-9493 P/N 656610.0.06 · 0N656610.0.06 · 0T656610.0.06 · 0T656610.0.06 · +2 more
  13. O-RING NSN 5331-01-278-5037 P/N C2817-5725-06 · 2817-5725-06 · C2817-5725-06 · C2817-5725-06 · +2 more
  14. O-RING NSN 5331-01-277-6585 P/N AS3085-128 · 2-128 V747-75 · 10117184 · V0747 2-128 · +2 more
  15. O-RING NSN 5331-01-277-2200 P/N 585-6406616-60 · 585-6046616-60 · 514S-2336-514S · 585-6406616-60 · +2 more
  16. O-RING NSN 5331-01-277-0163 P/N 298-00-543-8-04 · 1EA NC344879 · 1-NC344879/1-NC344895/4-NC344887 · 4EA NC344887 · +2 more
  17. O-RING NSN 5331-01-276-5702 P/N 154014 · MS28775-210 · MS28775-210 · 154014 · +2 more
  18. O-RING NSN 5331-01-276-3348 P/N 9680368 · 9685444 · 9680368 · 9685444 · +2 more
  19. O-RING NSN 5331-01-276-0762 P/N 01-515-0009-4 PC 88 · 222-4200-70 · CM1-222B46A+568-222 COMP 4200-70 · CM1-222B46A · +2 more
  20. O-RING NSN 5331-01-275-5946 P/N 280G313 · 5-332-1.50 IN I · 2801311 · 5-332-7-41511 P ACKING · +2 more
  21. O-RING NSN 5331-01-274-5600 P/N AS568-907 · AS568A-907 · 3-907E515-80 · AS568-907 · +2 more
  22. O-RING NSN 5331-01-274-3034 P/N 704AS1144-2 · 704AS1144-2 · PRP-568-372-1235-70 · S0604 2-372 · +2 more
  23. O-RING NSN 5331-01-274-2264 P/N AS568-031AMS3209 · C0557 2-031 · 2-031 C557-70 · 2-031 C557-7 · +2 more
  24. O-RING NSN 5331-01-273-7270 P/N 8307-045 · 045-8307 · PRP045-8307 · 120R1 CLASS 1 SIZE 045 · +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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