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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 5331-00-414-2810 P/N MS9966-05 · 5331PL1771247 · 5331PL0844976 · MS9966-05 · +3 more
  2. O-RING NSN 5331-00-414-2807 P/N MS9966-10 · 5331PL0656998 · MS9966-10 · MILR3533-910ES · +3 more
  3. O-RING NSN 5331-00-414-2701 P/N MS9967-218 · AS9967-218 · MS9967-218 · MILR3533-218ES · +3 more
  4. O-RING NSN 5331-00-414-2699 P/N MS9967-231 · 5331PL2126165 · MS9967-231 · MILR3533-231ES · +3 more
  5. O-RING NSN 5331-00-414-2697 P/N MS9386-126 · 5331PL0656996 · MS9386-126 · MS9386-126 · +3 more
  6. O-RING NSN 5331-00-414-2676 P/N MS9966-08 · 5331PL0660670 · 5331PL1738320 · MS9966-08 · +3 more
  7. O-RING NSN 5331-00-414-2668 P/N AS9386-130 · MS9386-130 · MS9386-130 · MS9386-130ES · +3 more
  8. O-RING NSN 5331-00-413-3030 P/N S9412-572 · S9412-572 · S9412-572 · S9412-572 · +3 more
  9. O-RING NSN 5331-00-409-9935 P/N CN25C85 · 25C85-77 · AS568B-905 · B5TH1003 · +3 more
  10. O-RING NSN 5331-00-409-9868 P/N AS568-262 · 2-262 E540-80 · 2-262E663-8 · 2-262E663-8 · +3 more
  11. O-RING NSN 5331-00-407-5480 P/N 123-043-1 · 2-043N219-7 · 7052637-13 · 2-043N674-70 · +3 more
  12. O-RING NSN 5331-00-405-6029 P/N 080-58532-4 · 2AB6 · 2-14N219-7 · 7-57-041 · +3 more
  13. O-RING NSN 5331-00-404-8231 P/N AS3582-146 · 5-146S604-70 · MS9068-146 · 2-146 · +3 more
  14. O-RING NSN 5331-00-402-2594 P/N 018-8307 · PRP018-8307 · 513AH18 · O118-8307 · +3 more
  15. O-RING NSN 5331-00-402-0095 P/N ASTM D2000 GR M2AA810A13EA14 · SAE AS568B-114 · 5331PL1256853 · 2-114E515-8 · +3 more
  16. O-RING NSN 5331-00-401-4902 P/N S9412-111 · S9412-111 · M25988/2-111 · MIL-R-25988B · +3 more
  17. O-RING NSN 5331-00-401-0812 P/N 2-136E529-6 · AS568-136MIL-G-22050 GR1 · M22050-1-136 · MIL-DTL-22050 · +3 more
  18. O-RING NSN 5331-00-399-0651 P/N PLD301281PC38 · 73326-16H · 31-325-10-HT · 2-232E515-8 · +3 more
  19. O-RING NSN 5331-00-395-1647 P/N BACP11K3 · BACP11K3 · 3-903-S383-70 · BACP11K3 · +3 more
  20. O-RING NSN 5331-00-387-1042 P/N AB0050682241E · AB0050682241E · 003-682241-E · 682241E · +3 more
  21. O-RING NSN 5331-00-385-7902 P/N 853-8309-002 · 853-08309-002 · 853-08309-000 · 853-8309 · +3 more
  22. O-RING NSN 5331-00-384-0102 P/N 3650358 · 346 · BK10550 · BK10550 · +3 more
  23. O-RING NSN 5331-00-381-8930 P/N 69494K30 · MIL-R-25988/1 · M25988/1-030 · MIL-DTL-25988/1 · +3 more
  24. O-RING NSN 5331-00-373-8437 P/N 213546 · 213546 · 213546 · 213546 · +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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