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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 5331-00-492-2070 P/N CL25C85 · 25C85-75 · M25988-1-905 · MILR25988 · +9 more
  2. O-RING NSN 5331-00-481-9987 P/N 7866-032 · 457-60-032 · MS29513-032 · MILP5315 · +9 more
  3. O-RING NSN 5331-00-481-6500 P/N 031-7507 · D2000-M3CH714A25B34EO16EO36 · AS568-031 · 2-031N-674-70 · +9 more
  4. O-RING NSN 5331-00-480-1853 P/N MILR25988 · MIL-DTL-25988/1 · M25988/1-114 · 104A114 · +9 more
  5. O-RING NSN 5331-00-476-7498 P/N CM1-278-B46A · AS568B-278/GRM3CH714A25B34E0 · 0-2-3-4 · 0-2-5-4 · +9 more
  6. O-RING NSN 5331-00-455-7025 P/N PRP132-3238 · 132-3238 · NAS1611-132 · J120 · +9 more
  7. O-RING NSN 5331-00-455-6406 P/N N0674 0186-4070ITAR · 2443009-8 · 2243009-8 · 2243009-8 · +9 more
  8. O-RING NSN 5331-00-448-8148 P/N 39813972 · 2034-7906FM271/1 · D2000 · AS568-139 · +9 more
  9. O-RING NSN 5331-00-439-8123 P/N 104X15A · 2-15-47-741 · 2-15-47-741 · 104X15A · +9 more
  10. O-RING NSN 5331-00-419-0742 P/N 162A8089P43 · 162A8089P43 · NAS1613 · NAS1611-022 · +9 more
  11. O-RING NSN 5331-00-416-9203 P/N PRP131-11737 · 131-11737 · AS9386-131 · MS9386-131 · +9 more
  12. O-RING NSN 5331-00-414-2809 P/N 6687109-12 · 6871091-12 · MS9966-12 · 5331PL0844970 · +9 more
  13. O-RING NSN 5331-00-404-6304 P/N AS568-908 · ARP568-908MILP25732 · 5331PL0776793 · N290008B000 · +9 more
  14. O-RING NSN 5331-00-369-2780 P/N PRP033-11647 · 033-11647 · MIL-R-25988/1 · MIL-DTL-25988/1 · +9 more
  15. O-RING NSN 5331-00-364-8103 P/N 649-393-169-0 · AS3209-169 · AMS-3216G · M83248/1-169 · +9 more
  16. O-RING NSN 5331-00-359-4050 P/N AB0070619010 · AB0070619010 · 619010 · 25K40116 · +9 more
  17. O-RING NSN 5331-00-352-0321 P/N 102A10006-01 · MIL-DTL-25988/1 · M25988/1-020 · MIL-R-25988/1 · +9 more
  18. O-RING NSN 5331-00-349-4208 P/N 285783R1 · 285442R1 · 285783R1 · 285442R1 · +9 more
  19. O-RING NSN 5331-00-324-7730 P/N ST7M251-8 · 00239-025 F70 · LRC63047-8 · 9950-605A · +9 more
  20. O-RING NSN 5331-00-297-6300 P/N PRP218-7377 · PRP902-23 · X1363T21 · S8057E23 · +9 more
  21. O-RING NSN 5331-00-292-8839 P/N ZS40D · 902-19 · 125038 · ZB287-1004P19 · +9 more
  22. O-RING NSN 5331-00-292-2054 P/N 3230490 · 3230490 · CL51S61-0901PC23 · 81125S41-21152ALT2PC10 · +9 more
  23. O-RING NSN 5331-00-291-9218 P/N WW8453351PC4A · WW8440676PC4A · WW8440676PC4A · DD445S6100-51PC31 · +9 more
  24. O-RING NSN 5331-00-291-7380 P/N AS3569-258 · AN124018 · AN124018 · 2-258 · +9 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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