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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 5331-01-547-6663 P/N 801-6408786 FIND NO 8 · AS3581-219CP · 801-6408786 FIND NO 8CP · M83248/2-219CP · +2 more
  2. O-RING NSN 5331-01-545-7651 P/N 6934649 FIND 032 · 6395031 FIND 009 · M83248/1-014 · 6934649 FIND 032D0 · +2 more
  3. O-RING NSN 5331-01-545-4904 P/N 5793301 FIND 150 · 5793295 FIND 163 · AS3581-465 · M83248/2-465 · +2 more
  4. O-RING NSN 5331-01-542-6698 P/N 7550478-PLC11401-011 · M83248/2-014 · G547-0002-PLC11401-011 · PLC11401-011 · +2 more
  5. O-RING NSN 5331-01-542-4571 P/N 5793273 FIND 113 · 6391095 FIND 008 · M83248/2-908 · 6391095 FIND 008D4 · +2 more
  6. O-RING NSN 5331-01-542-0740 P/N 01240B · 205101 ITEM 23 · 00737H · 00737H · +2 more
  7. O-RING NSN 5331-01-541-1319 P/N 7HB864 · 17KP659 · 3135778 · 17KP659 · +2 more
  8. O-RING NSN 5331-01-540-8270 P/N ST1946-222 · 7T0565-222 · 7T0566-222 · ST1946-222 · +2 more
  9. O-RING NSN 5331-01-540-0866 P/N 6391018 FIND 037 · 6394540 FIND 21 · M83248/2-908 · 6391018 FIND 037D0 · +2 more
  10. O-RING NSN 5331-01-533-9263 P/N 6395175 FIND 009 · 4400571-1280 · 237085-0001 FIND 067 · 4400571-1280D0 · +2 more
  11. O-RING NSN 5331-01-532-9228 P/N 2203715-0 · 2203715-0 · 2203715/0 · 2203715/0 · +2 more
  12. O-RING NSN 5331-01-532-7693 P/N M83412/1-009 · MIL-R-83412 · M83412/1-009 · MIL-R-83412 · +2 more
  13. O-RING NSN 5331-01-532-7685 P/N MIL-R-83412 · M83412/1-904 · M83412/1-904 · MIL-R-83412 · +2 more
  14. O-RING NSN 5331-01-531-5087 P/N 8KK674 · 637974 · PH 637974 · 4199999 · +2 more
  15. O-RING NSN 5331-01-529-8198 P/N 2852-2001-11-12 · 7550478-2852200111A-12 · M83248/1-010 · 2852200111A-12 · +2 more
  16. O-RING NSN 5331-01-527-8458 P/N 50034 · 723275 · 0028636 · 10405451 · +2 more
  17. O-RING NSN 5331-01-527-7569 P/N 225-7738 · 10076260 · 225-7738 · 225-7738 · +2 more
  18. O-RING NSN 5331-01-525-4179 P/N AMS-R-83285 GR80 · AS568-218 · AMS-R-83285GR80/AS568-218 · AMS-R-83285GR80/AS568-218 · +2 more
  19. O-RING NSN 5331-01-524-8712 P/N 102-842-1109 · P37080014 · LP52-1243-57B · AMP-01-05-22210 · +2 more
  20. PARTS KIT,O-RING NSN 5331-01-524-8416 P/N 102-837-1109 · AS06-1964 · LP52 0993-57B · 102-837-1109 · +2 more
  21. O-RING NSN 5331-01-524-4670 P/N 1000758 · 23KP203 · 23KP203 · 5331PL2157762 · +2 more
  22. O-RING NSN 5331-01-523-4263 P/N 12640991 · 3165373 · AS568B-014 · 3165373 · +2 more
  23. O-RING NSN 5331-01-522-8307 P/N 2GL686 · 2GL686 · DP9620 · Y00023236 · +2 more
  24. O-RING NSN 5331-01-522-5671 P/N 4064989 · 232383 · 49358 REV D BUBB# 15 · 4064989 · +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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