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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 5331-01-560-9226 P/N AS3582-910 · 8599B · 12424404 PC 564 · 12424404 · +4 more
  2. O-RING NSN 5331-01-559-2097 P/N M83248/1-134 · AC180-134 · V3D10325 ITEM 017 · AC180-134CP · +4 more
  3. O-RING NSN 5331-01-559-2075 P/N M83248/1-236 · AC180-236 · AC180-236CP · V3E10064 ITEM 037 · +4 more
  4. O-RING NSN 5331-01-559-0572 P/N 124694 · 6010000127 · 2 0175-239 · 92270550 · +4 more
  5. O-RING NSN 5331-01-555-3905 P/N 7KK658 · 7KK658 · 10322284 · 228-4947 · +4 more
  6. O-RING NSN 5331-01-549-2426 P/N DF330645 FIND NO 38 · CD-023-02-38 · 801-6408785 FIND NO 38 · 211054499 · +4 more
  7. O-RING NSN 5331-01-532-9619 P/N 2179278/0 · 125605 · 2179278/0 · 2 0241-946 · +4 more
  8. O-RING NSN 5331-01-524-9736 P/N 410-12349 · MS28775-334 · MS28775-334 · MIL-P-25732 · +4 more
  9. O-RING NSN 5331-01-513-5210 P/N 1000756 · 23KP205 · 23KP205 · 10322282 · +4 more
  10. O-RING NSN 5331-01-512-7895 P/N 13974PC64 · 18441-3K REV A FN 89 · 13146PC32 · 30-1601 · +4 more
  11. O-RING NSN 5331-01-505-0381 P/N 134643 · 175789 REV B ITEM 27 · M83485/1-255 · M83485/1-255 · +4 more
  12. O-RING NSN 5331-01-504-6419 P/N M-R-83485 · M83485/1-471 · M83485/1-471 · M-R-83485 · +4 more
  13. O-RING NSN 5331-01-503-9838 P/N M83461/1-275 · AMS-P-83461 · M83461/1-275 · MIL-P-83461 · +4 more
  14. O-RING NSN 5331-01-502-3307 P/N M2066PC42 · 70-3037 · M2065PC42 · M2065PC40 · +4 more
  15. O-RING NSN 5331-01-501-4292 P/N ST1946-165 · ST1946-165 · M83485/1-165 · M83485/1-165 · +4 more
  16. O-RING NSN 5331-01-501-3064 P/N ST1946-256 · ST1946-256 · ST1946-256 · ST1946-256 · +4 more
  17. O-RING NSN 5331-01-499-9401 P/N 922261 · NAS1611-280A · NAS1613 · NAS1601 · +4 more
  18. O-RING NSN 5331-01-498-9953 P/N AS568-371 N466 · AS568-371 N466 · 5331PL2332854 · 5331PL2241764 · +4 more
  19. O-RING NSN 5331-01-491-1423 P/N 085245 · 17KP930 · 17KP930 · 085 245 · +4 more
  20. O-RING NSN 5331-01-491-1417 P/N 085244 · 17KP933 · 17KP933 · 085 244 · +4 more
  21. O-RING NSN 5331-01-484-0125 P/N 140-3C4-6 · AS3581-255 · AMS 7259 · MIL-R-83248 CLASS 2 · +4 more
  22. O-RING NSN 5331-01-483-0841 P/N M83485/1-018 · AMS-R-83485 · M83485/1-018 · 5331PL2131081 · +4 more
  23. O-RING NSN 5331-01-483-0828 P/N AMS-R-83485 · M83485/1-239 · M83485/1-239 · 5331PL2028426 · +4 more
  24. O-RING NSN 5331-01-481-8454 P/N 32-8450 · 853-07542-000 · 700-D-8027 ITEM 10 · 853-7542 · +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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