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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 5331-00-938-9102 P/N 918-2347 · PRP918-2347 · PRP568-918-3110-70 · B-18SR533-70 · +4 more
  2. O-RING NSN 5331-00-935-9137 P/N 5331PL1279978 · 234804PC61 · 4400891-0084 · 4400661-0080 · +4 more
  3. O-RING NSN 5331-00-933-7072 P/N SMB544229 · AS568-217 · AMS3302 · MIL-STD-413 · +4 more
  4. O-RING NSN 5331-00-931-4883 P/N PRP227-3238 · 1562259-3 · NAS1611-227 · 2-227E515-8 · +4 more
  5. O-RING NSN 5331-00-928-6806 P/N AS3581-162 · AMS7259 · MIL-R-83248 · M83248/2-162 · +4 more
  6. O-RING NSN 5331-00-928-2005 P/N 022-711-70 · 114HS441-5 · 114HS441-5 · 11-022-7474-70 · +4 more
  7. O-RING NSN 5331-00-926-1908 P/N PRP568-325-4024-65 · AS3578-325 · MS9021-325 · 2-325 N506-65 · +4 more
  8. O-RING NSN 5331-00-925-0466 P/N 137492-3 · AS3582-223 · MS9068-223 · 2-223 S604-70 · +4 more
  9. O-RING NSN 5331-00-922-7967 P/N 364879R1 · 238-5118 · 364879R1 · 408044C1 · +4 more
  10. O-RING NSN 5331-00-918-9499 P/N ARP568-910MILP25732 · 5331PL1279899 · 695-7778-37 · H802-10 · +4 more
  11. O-RING NSN 5331-00-917-2612 P/N 164A6215-1 · 3-355-8-00-901-09 · 3-355-8-00-903-09 · 75GR6001-9 · +4 more
  12. O-RING NSN 5331-00-914-5820 P/N IPD4J527 · CV188161 · 4J-0527 · 4J0527 · +4 more
  13. O-RING NSN 5331-00-913-6143 P/N 4J0519 · 4J519 · 4J0519 · 4J519 · +4 more
  14. O-RING NSN 5331-00-905-3653 P/N AS3582-265 · MS9068-265 · MS9068-265ES · S0604 2-265 · +4 more
  15. O-RING NSN 5331-00-902-0917 P/N AS568-278 · MS29561 · 2-278 NM071 · 47071 A7362-278 · +4 more
  16. O-RING NSN 5331-00-901-6194 P/N AS3582-237 · MS9068-237 · 4751-08 · 2-237 S604-70 · +4 more
  17. O-RING NSN 5331-00-899-1982 P/N PRP568-264-4024-65 · AS3578-264 · MS9021-264 · 2-264 N506-65 · +4 more
  18. O-RING NSN 5331-00-898-9777 P/N 6725922 · 6725922 · AS3551-262 · MS9241-262 · +4 more
  19. O-RING NSN 5331-00-894-1292 P/N AS3551-014 · MS9241-014 · MS9241-014 · MS9241-014ES · +4 more
  20. O-RING NSN 5331-00-892-1646 P/N 11-235-7806-70 · MIL-DTL-22050 · MILG22050 · 5331PL0144162 · +4 more
  21. O-RING NSN 5331-00-891-4685 P/N 17107A362-1707A · B62101-362 · BACP11P362 · 2-362-77-545 · +4 more
  22. O-RING NSN 5331-00-884-6965 P/N 115-7117 · 115-711-70 · 484 696 · GS101F13 · +4 more
  23. O-RING NSN 5331-00-884-0943 P/N AS3582-027 · AS3582-027 · MS9068-027 · 2-027 S604-70 · +4 more
  24. O-RING NSN 5331-00-883-2799 P/N 17277P11 · 172314 · 624VLK0365W · 10510497 · +4 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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