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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 5331-01-579-8163 P/N PL12424404 PC 847 · 8601B · R49388-906J · R49388-906J · +7 more
  2. O-RING NSN 5331-01-553-4068 P/N 803-INC6701-A ITEM NO.19 · M83248/1-431 · 211039287 · SAE-AS3209CP · +7 more
  3. O-RING NSN 5331-01-552-9922 P/N CC 1200 2010 S PL PART NO.17 · CD-023-12-17 · 7383858-CC12002010S-17 · M83248/2-141 · +7 more
  4. O-RING NSN 5331-01-546-4689 P/N 101A926U01CP · 101A926U01CP · 101A926U01 · 10A2235A-1 REV. 3 KEY 3 · +7 more
  5. O-RING NSN 5331-01-545-8113 P/N 17KP301 · 17KP301 · 10076374 · 203-3940 · +7 more
  6. O-RING NSN 5331-01-545-7789 P/N 803-6397304-XX-27 · 7550478-6397304-27 · M83461/1-009 · 5331PL0973108 · +7 more
  7. O-RING NSN 5331-01-541-1866 P/N 6393878 FIND 8 · 6393878 FIND 8 · 5793654 FIND 014 · 6393877 FIND 008 · +7 more
  8. O-RING NSN 5331-01-536-3048 P/N M83248/1-135 · MS28774 · MS28774-119 · V3E10064 ITEM 029 · +7 more
  9. O-RING NSN 5331-01-528-6356 P/N AS3581-431CP · AMS7259 · CD-023-35-11CP · M83248/2-431CP · +7 more
  10. O-RING NSN 5331-01-524-5717 P/N 1000755 · 23KP204 · 10076373 · 5331015245717 · +7 more
  11. O-RING NSN 5331-01-501-4324 P/N ST1946-241 · ST1946-241 · ST1946-241 · ST1946-241 · +7 more
  12. O-RING NSN 5331-01-480-2366 P/N 12613774 · 3-912 NBR · 3-912 · 7HB220 · +7 more
  13. O-RING NSN 5331-01-470-3112 P/N 1000771 · 23KP146 · 5331PL2128451 · 148-2903 · +7 more
  14. O-RING NSN 5331-01-457-5114 P/N ST1946-219 · AMS-R-83485/1-219 · AMS-R-83485/1 · MIL-R-83485/1 · +7 more
  15. O-RING NSN 5331-01-448-8390 P/N AMS-P-83461/1 · AMS-P-83461/1 · AMS-P-83461/1 · M83461/1-165 · +7 more
  16. O-RING NSN 5331-01-439-9955 P/N ST1946-127 · ST1946-127 · ST1946-127 · ST1946-127 · +7 more
  17. O-RING NSN 5331-01-435-2491 P/N AMS-P-83461 · M83461/1-360 · M83461/1-360 · MIL-P-83461 · +7 more
  18. O-RING NSN 5331-01-428-7166 P/N 211056400 · AS3581-470 · RX-192369 ITEM 1.6 · RX-192369 ITEM 16 · +7 more
  19. O-RING NSN 5331-01-425-0344 P/N OR3012450-N762A · 2152 2115-885 · 21-10614 IT 13 · 463735/6370001 · +7 more
  20. O-RING NSN 5331-01-423-0910 P/N M83461/1-252 · AMS-P-83461 · MIL-P-83461 · M83461/1-252 · +7 more
  21. O-RING NSN 5331-01-398-2627 P/N 6404854 FIND 43 · 211070186 · 585-6404854 FIND 43 · M83485/1-331 · +7 more
  22. O-RING NSN 5331-01-398-2594 P/N 211065832 · 585-6404854 FIND 39 · 6404854 FIND 39 · AMS-R-83485/1-329 · +7 more
  23. O-RING NSN 5331-01-392-1793 P/N M83461/1-030 · AMS-P-83461 · MIL-P-83461 · M83461/1-030 · +7 more
  24. O-RING NSN 5331-01-391-3000 P/N 2-151N756-75 · 07A568-151N · 07A568-151N · M83461/1-151 · +7 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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