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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 5331-00-599-0927 P/N 501239 · 327-7117 · 97140220 · 71161 · +3 more
  2. O-RING NSN 5331-00-598-7969 P/N 11029561340 · AMS-R-7362 TYPE I · MS29561-340 · MS29561-340 · +3 more
  3. O-RING NSN 5331-00-593-1247 P/N 5H-8848 · 5H8848 · 5H8848 · 5H8848 · +3 more
  4. O-RING NSN 5331-00-593-1141 P/N 627197C12 · D2000 SB715ABE1E3FIR · AS568C · 8C7432 · +3 more
  5. O-RING NSN 5331-00-591-7943 P/N 66127 · 001-66127 · 622731 · T-9108 · +3 more
  6. O-RING NSN 5331-00-591-7543 P/N 7F8607 · 7F8607 · 7F8607 · 2-116 N0951-75 · +3 more
  7. O-RING NSN 5331-00-590-8872 P/N EMP82783 · RG6 · 448 · 976 · +3 more
  8. O-RING NSN 5331-00-585-9475 P/N PRP568-280-4024-65 · AS3578-280 · 5331PL0931098 · MS9021-280 · +3 more
  9. O-RING NSN 5331-00-585-7865 P/N PRP568-146-4024-25 · AS3578-146 · MS9021-146 · 2-146 N506-65 · +3 more
  10. O-RING NSN 5331-00-585-6633 P/N AS3578-231 · 5331PL2086032 · 5331PL0908768 · MS9021-231 · +3 more
  11. O-RING NSN 5331-00-585-3167 P/N 50001A219 · WW359REVGPC3 · 607-210227 · 607-210227 · +3 more
  12. O-RING NSN 5331-00-585-0850 P/N AS3569-212 · AS3569-212 · AN123972 · 2-212N179-70 · +3 more
  13. O-RING NSN 5331-00-584-1589 P/N M383-16 · M383-16 · 7629X16 · 43921 · +3 more
  14. O-RING NSN 5331-00-584-1305 P/N S8057A2 · S8057A2 · S8057A2 · AMS3305H · +3 more
  15. O-RING NSN 5331-00-582-2522 P/N 042694-010 PC 1 · 2-010B278-7 · 010-3238 · 500000-0010-002 8 · +3 more
  16. O-RING NSN 5331-00-580-9771 P/N PRP568-427-4024-65 · AS3578-427 · MS9021-427 · 2-427 N506-65 · +3 more
  17. O-RING NSN 5331-00-580-9769 P/N PRP568-328-4024-65 · AS3578-328 · MS9021-328 · 2-328 N506-65 · +3 more
  18. O-RING NSN 5331-00-580-9764 P/N PRP568-245-4024-65 · AS3578-245 · MS9021-245 · 2-245 N506-65 · +3 more
  19. O-RING NSN 5331-00-580-9762 P/N PRP568-234-4024-65 · AS3578-234 · MS9021-234 · 2-234 N506-65 · +3 more
  20. O-RING NSN 5331-00-580-9432 P/N X1364T12 · 1364T12 · 1364T12 · X1364T12 · +3 more
  21. O-RING NSN 5331-00-580-9222 P/N L675-17589 · 6736993 · L4225-19318 · 6876884 · +3 more
  22. O-RING NSN 5331-00-580-6582 P/N 2-160N674-70 · AS568B-160 · 34-82 · 2701-010 · +3 more
  23. O-RING NSN 5331-00-580-6308 P/N K206851 · K206851 · 228S418-6 · 228S418-6 · +3 more
  24. O-RING NSN 5331-00-580-1226 P/N 1H-9696 · 1H9696 · 1H9696 · 1H9696 · +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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