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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 5331-01-113-9871 P/N AS3581-231 · MIL-R-83248/2 · M83248/2-231 · 5331PL1261148 · +3 more
  2. O-RING NSN 5331-01-112-7963 P/N AS3581-030 · M83248/2-030 · MIL-R-83248/2 · 5331PL1398102 · +3 more
  3. O-RING NSN 5331-01-111-8436 P/N D1234SW ITEM 49 · D1234SW ITEM 49 · AS3209-125 · M83248/1-125 · +3 more
  4. O-RING NSN 5331-01-111-2802 P/N 01-435-0157-5 PIECE 218 · AS568-151 · AS568-151AMS7270 · ASM7270 · +3 more
  5. O-RING NSN 5331-01-109-7499 P/N 028-12925-000 · 364-48946-000 ITEM 35 · AS568-240 NEOPR ENE-1 · 2-240C557-70 · +3 more
  6. O-RING NSN 5331-01-108-4451 P/N P48026-106 · AS28775-106 · MS28775-106 · MS28775-106 · +3 more
  7. O-RING NSN 5331-01-106-2978 P/N AS3581-223 · M83248-2-223 · 516-6600807-F13 6 · M83248/2-223CP · +3 more
  8. O-RING NSN 5331-01-104-5949 P/N 300-670P10 · AS568-003 · ASM3209 · 2-003-C557-7 · +3 more
  9. O-RING NSN 5331-01-102-1894 P/N 015-3177 · 820-4551687-2 · 820-4551687 · P00380NRP · +3 more
  10. O-RING NSN 5331-01-101-8166 P/N 7866-367 · 457-60-367 · 1793-367 · SR-822A-60-367 · +3 more
  11. O-RING NSN 5331-01-101-1726 P/N AS568-172 · AMS3304 · 2-172N674-70 · 2-172 · +3 more
  12. O-RING NSN 5331-01-100-8760 P/N 27777 · 27777 · 27777 · 7000725 · +3 more
  13. O-RING NSN 5331-01-100-8759 P/N 27808 · 27808 · 27808 · 7000723 · +3 more
  14. O-RING NSN 5331-01-095-1254 P/N 6D7889 · 6D7889 · 6D-7889 · 6D7889 · +3 more
  15. O-RING NSN 5331-01-094-0371 P/N 2-326 · 10061-10 ITEM 6 · 2-326 N674-70 · 0065229.53.63 · +3 more
  16. O-RING NSN 5331-01-093-5163 P/N 52561A329 · 329-7399 · AS568-329MIL-P-5510 · 52561A329 · +3 more
  17. O-RING NSN 5331-01-093-3502 P/N AS568-212 · AMS 7276G · 2-212N507-90 · AS568-212 · +3 more
  18. O-RING NSN 5331-01-093-2486 P/N J228P041 · 5331PL0166425 · J228P041 · J228P041 · +3 more
  19. O-RING NSN 5331-01-092-0254 P/N NAS1611-003 · NAS1613 · 5331PL1259522 · 59620 PIECE 3/4 IN VL · +3 more
  20. O-RING NSN 5331-01-091-1012 P/N 5331PL1259425 · 242466 · WK-242466-000 · R-97945PC8 · +3 more
  21. O-RING NSN 5331-01-030-1822 P/N 3S5271-13PIECE62 · 01-515-0007-4 ITEM 199 · 272.354.144 · 2-134 N674-70 · +3 more
  22. O-RING NSN 5331-01-029-9916 P/N AS568-008AS7276 · ARP568-008MILR25897TY1CL1 · MIL-R-83248/1-008 · L180-008 · +3 more
  23. O-RING NSN 5331-01-029-3675 P/N 2507294-46 · 2507294-46 · 2507294-46 · N219-7-3-902 · +3 more
  24. O-RING NSN 5331-01-028-4453 P/N AS3582-148 · MS9068-148 · MS9068-148 · S0604 2-148 · +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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