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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 5331-00-844-1848 P/N MIL-P-25732C · 563849-10N · AS568-910 · MIL-P-25732 · +6 more
  2. O-RING NSN 5331-00-840-6269 P/N 497250-286 · 700556 · S38796-1-4INCH · MS29561-019 · +6 more
  3. O-RING NSN 5331-00-835-6115 P/N ASTM D2000 · ASTM D2000-M5BC714F1 · M5BC714F1/4.625 ID X 0.090W · 6001000032 · +6 more
  4. O-RING NSN 5331-00-835-2765 P/N MS29561-110 · 61245-2-110 · MS29561-110 · AS29561-110 · +6 more
  5. O-RING NSN 5331-00-831-6640 P/N ARP568-015MILG23652TYPE2 · AMS7276 · AS568-015 MIL-G-23652 TYPE 2 · AS568-015 · +6 more
  6. O-RING NSN 5331-00-822-5980 P/N 2-1198-4-71 · 1877644PC9 · 90479PC9 · 186923 · +6 more
  7. O-RING NSN 5331-00-822-0082 P/N 914-2347 · PRP914-2347 · PRP568-914-3110-70 · B-14SR533-70 · +6 more
  8. O-RING NSN 5331-00-815-7994 P/N 2222620 · HR166-282 · 2222620 · 2930-70 · +6 more
  9. O-RING NSN 5331-00-811-3508 P/N PRP568-027-4024-65 · AS3578-027 · 5331PL1593902 · MS9021-027 · +6 more
  10. O-RING NSN 5331-00-807-7931 P/N PRP902-24 142-70 · MS29561-219 · 38 76504 2219 2 · 5331PL0166717 · +6 more
  11. O-RING NSN 5331-00-801-3354 P/N 906-737-70 · AS568-906 · CVC4233-6 · MIL-P-25732 · +6 more
  12. O-RING NSN 5331-00-800-6647 P/N SG3941PC26 · SG3939PC26 · PP023BR · SG3945PC26 · +6 more
  13. O-RING NSN 5331-00-781-6958 P/N 74022PC41 · AS568-924 · ARP568-924MILP25732 · MIL-P-25732C · +6 more
  14. O-RING NSN 5331-00-771-7679 P/N PRP908-2347 · 908-2347 · PRP568-908-3110-70 · 5331PL0166814 · +6 more
  15. O-RING NSN 5331-00-764-1787 P/N 040-11307 · AS3582-040 · MS9068-040 · MS9068-40 · +6 more
  16. O-RING NSN 5331-00-763-0074 P/N M25988/1-112 · MIL-DTL-25988/1 · MIL-R-25988/1 · M25988/1-112 · +6 more
  17. O-RING NSN 5331-01-721-5279 P/N 283-3238 · 5893840-283 · 5893840-283 · 2502774-50 · +6 more
  18. O-RING NSN 5331-01-657-9636 P/N M83248/1-012 · S3C10053 ITEM 7 · AC180-012 · V3D10436 ITEM 8 · +6 more
  19. O-RING NSN 5331-01-582-5393 P/N 2-113 · AS568-113 · 2-113N219-7 · 2-113 N674-7 · +6 more
  20. O-RING NSN 5331-01-559-2107 P/N AS3209-121 CP · M83248/1-121 · AC180-121 · V3D10326 ITEM 019 · +6 more
  21. O-RING NSN 5331-01-550-3664 P/N 7550478-190000-32-12 · 190000 PC 12 513CK-227 · 513CK-227 · 190000-32-12 · +6 more
  22. O-RING NSN 5331-01-550-3408 P/N 7550478-284732-0007-63 · G547-0002-284732-0007-63 · 284732-0007 ITEM 63 · 284732-0007-63 · +6 more
  23. O-RING NSN 5331-01-549-8542 P/N 7550478-281250-0011-63 · G547-0002-281250-0011-63 · 4400596-1140 · 281250-0011-63 · +6 more
  24. O-RING NSN 5331-01-549-5011 P/N 845-7108792-39 · 7383858-264367001-39 · M83248/2-339 · 2643-670-01-39 · +6 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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