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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 5331-01-072-2635 P/N 2-300-01264 · 2-300-01264 · 2-300-01264 · 2-300-01264 · +4 more
  2. O-RING NSN 5331-01-068-9810 P/N 028-09561 · 028-09561 · 028-09561-000 · D1531M · +4 more
  3. O-RING NSN 5331-01-068-5432 P/N AS3085-224 · 6725884 · AS3085-224 · 5331PL1804380 · +4 more
  4. O-RING NSN 5331-01-067-5096 P/N CC29058-8 · 149229 · 1966647 · 46296R384PC8 · +4 more
  5. O-RING NSN 5331-01-066-1919 P/N 287-6008P058 · 287-6008P058 · M25988/3-122 · MIL-DTL-25988/3 · +4 more
  6. O-RING NSN 5331-01-065-7429 P/N F-412 PART 6303 · AS568-345MILG21569CL1 · AS568-345 · MILG21569CL1 · +4 more
  7. O-RING NSN 5331-01-061-1906 P/N 38265 · 36390 FIND 32 · 38265 · 36390 FIND 32 · +4 more
  8. O-RING NSN 5331-01-054-8419 P/N 2FP963 · 2FH963 · 2FH963 · 114873 · +4 more
  9. O-RING NSN 5331-01-054-2587 P/N NAS1593-039 · AMS7276G · AS568-039 · NAS1593-039CP · +4 more
  10. O-RING NSN 5331-01-053-1715 P/N 120039-53 · 120039-053 · 2-251N0674-70 · 231-27-1186 · +4 more
  11. O-RING NSN 5331-01-046-0621 P/N 639AS1458-006 · AS568-006 · D2000M2AA907A13EA14F17 · D2000M2AA910A13F17L14Z · +4 more
  12. O-RING NSN 5331-01-043-5822 P/N AS3084-08 · AS3084-08 · 6737083-8 · AS3084-08 · +4 more
  13. O-RING NSN 5331-01-043-1905 P/N SAE AMS7259 · AS3581-386 · M83248/2-386 · MIL-R-83248/2 · +4 more
  14. O-RING NSN 5331-01-043-1420 P/N GS570J5J712 · GS570J5J712 · GS570J5J712 · 5-712L677-7 · +4 more
  15. O-RING NSN 5331-01-042-4477 P/N 300-430-14 · 300-352-9 · 200-724-8 · 300-352P9 · +4 more
  16. O-RING NSN 5331-01-038-2123 P/N AS568A3-910 N168-80 · 3-910 N168-80 · STSPK300-10 · N1231-80 · +4 more
  17. O-RING NSN 5331-01-035-0988 P/N MS28775-011 · 5331PL0809272 · MS28775-011 · MS28775-011ES · +4 more
  18. O-RING NSN 5331-01-033-2711 P/N AS3208-12 · 5331PL0212909 · AS3208-12 · 10117146 · +4 more
  19. O-RING NSN 5331-01-032-6493 P/N 110901 PIECE 10 · AS568-110MILG23652TYPE2 · 2-110V587-9 · ARP568-110MILG2 3652TY2 · +4 more
  20. O-RING NSN 5331-01-031-8248 P/N 2507294-58 · 2507294-58 · B 2575.107.113 · 2507294-58 · +4 more
  21. O-RING NSN 5331-01-031-8245 P/N 2507294-43 · 2507294-43 · 2507294-43 · 284N674-70 · +4 more
  22. O-RING NSN 5331-01-031-8232 P/N 2507294-81 · 2507294-81 · P49708-0156 · 2507294-81 · +4 more
  23. O-RING NSN 5331-01-031-8230 P/N 2507294-70 · 2507294-70 · G140 2027A · G140 2027A · +4 more
  24. O-RING NSN 5331-01-031-8211 P/N 2507294-64 · 2507294-64 · 3522 500 12682 · 2507294-64 · +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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