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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 5331-01-733-1687 P/N 8635042 · 8635042-28 · 8635042-28 · 8635042-28 · +1 more
  2. O-RING NSN 5331-01-377-1519 P/N ASTM D2000/M2AA810A13EA14F17 · AS568-113 · 2-113E515-DUROMETER 80 · 2-113E515-80 · +1 more
  3. O-RING NSN 5331-01-377-0666 P/N 406757 16 · D406757 NO 16 · 406757 NO 16 · UM14512018 · +1 more
  4. O-RING NSN 5331-01-375-3087 P/N 9695 · 7HA363 · Y00023223 · DP9695 · +1 more
  5. O-RING NSN 5331-01-375-1116 P/N FHS1819-3 · FHS1819-3 · FHS1819-3 · FHS1819-3 · +1 more
  6. O-RING NSN 5331-01-374-3473 P/N AS3551-154 · MS9241-154 · 5331013743473 · AS3551-154 · +1 more
  7. O-RING NSN 5331-01-374-2325 P/N 9559K26 · MS9955-113 · MS9955-113 · MS9955-113 · +1 more
  8. O-RING NSN 5331-01-373-3348 P/N 938334045U01 · 938334045U01 · 938334045U01 · D3114628A · +1 more
  9. O-RING NSN 5331-01-373-3345 P/N 938273834U01 · 938273834U01 · 938273834U01 · 938273834U01 · +1 more
  10. O-RING NSN 5331-01-371-9508 P/N MS9386-106 · MS9386-106 · S3203-106 · 10414916 · +1 more
  11. O-RING NSN 5331-01-371-5166 P/N EM163 5-950 · 5-950E515-80 · 5-950E515-80 · EM163 5-950 · +1 more
  12. O-RING NSN 5331-01-371-5119 P/N 2HL627 · O-320S · 320-F · 2HL627 · +1 more
  13. O-RING NSN 5331-01-371-5082 P/N AM-1363 · H72046-8-7 · AM1363000P407 · AM-1363 · +1 more
  14. O-RING NSN 5331-01-371-4800 P/N 16606A54-248 · MIL-R-25988 · M25988/3-047 · MIL-DTL-25988/3 · +1 more
  15. O-RING NSN 5331-01-371-3287 P/N N0143XN · N0143XN · E1567A ITEM 20 · E1567A/20 · +1 more
  16. O-RING NSN 5331-01-371-2379 P/N 283854-0001 ITEM 63 · 4400484-0280 · 4400483-0280 · 283854-0001-63 · +1 more
  17. O-RING NSN 5331-01-371-2378 P/N 4400483-0120 · 4400484-0120 · 283854-0001 ITEM 62 · 283854-0001-62 · +1 more
  18. O-RING NSN 5331-01-371-2046 P/N 1/16IN DIAX405 IN · PL-E14969 ITEM 56D · HM0000178-N766A · 1/16IN DIAX405 IN · +1 more
  19. O-RING NSN 5331-01-371-0465 P/N 6195891-24 · 6696518-10 · 6914770-24 · 6914770-24 · +1 more
  20. O-RING NSN 5331-01-371-0464 P/N 6696518-6 · 6914770-12 · MIL-R-83248/1-032 · 6696518-6ED · +1 more
  21. O-RING NSN 5331-01-371-0463 P/N 6914770-11 · 6696518-5 · 6195891-11 · 6914770-11 · +1 more
  22. O-RING NSN 5331-01-370-8373 P/N PCM-C-524-18 · 9469K116 · 9469K136 · 9469K42 · +1 more
  23. O-RING NSN 5331-01-369-5833 P/N 10KP625 · 10KP625 · 932146 · 930623PC8 · +1 more
  24. O-RING NSN 5331-01-369-3571 P/N AS568-165 · 2-165-N507-90 · AS568-165 SAE AMS-P-5510 · AS568-165 · +1 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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