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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 5331-01-367-4221 P/N A5706-7187 · 792485 ITEM 80 · 952240-22 · SF13870-22 · +1 more
  2. O-RING NSN 5331-01-367-3645 P/N M83461/1-394 · M83461/1-394 · M83461/1-394 · SAE-AS83461/1 · +1 more
  3. O-RING NSN 5331-01-366-3060 P/N GS900200 · 2002AS527-1 · 3356AS527 · 3356AS527-1 · +1 more
  4. O-RING NSN 5331-01-365-4365 P/N DN10082 · 803-5959218 REV B PIECE 98 · AS568-019 · AMS 7276 · +1 more
  5. O-RING NSN 5331-01-365-1462 P/N GS900100 · 3356AS810-1 · 3356AS810 · 2002AS810-1 · +1 more
  6. O-RING NSN 5331-01-365-1461 P/N GS900000 · 3356AS707 · 3356AS707-1 · 2002AS707-1 · +1 more
  7. O-RING NSN 5331-01-365-1460 P/N GS900900 · 3356AS557 · 3356AS557-1 · 2002AS557-1 · +1 more
  8. O-RING NSN 5331-01-365-1458 P/N GS900700 · 3356AS550-1 · 3356AS550 · 2002AS550-1 · +1 more
  9. O-RING NSN 5331-01-365-1069 P/N NAS1613 · NAS1601-146 · NAS1611-146A · NAS1601 · +1 more
  10. O-RING NSN 5331-01-365-1065 P/N NAS1613 · NAS1611-026A · NAS1601-026 · NAS1601-26 · +1 more
  11. O-RING NSN 5331-01-364-3809 P/N MS28778-010 · MS28778-010 · 10310385 · MS28778-010 · +1 more
  12. O-RING NSN 5331-01-364-1517 P/N 2 820 210 008 · 2 820 210 008 · 2 820 210 008 · 2 820 210 008 · +1 more
  13. O-RING NSN 5331-01-364-1503 P/N 4235 ITEM 110 · PL3409402/3 ITEM 110 · N.0076030035 · 4235 ITEM 110 · +1 more
  14. O-RING NSN 5331-01-363-4891 P/N MS28775-339 · MIL-P-25732 · MS28775-339 · SAE-AS28775 · +1 more
  15. O-RING NSN 5331-01-363-1606 P/N 100-932-0270 · 100347-9000-028 · 100-932-0270 · 6375193-2 · +1 more
  16. O-RING NSN 5331-01-362-6415 P/N 100347-9000-058 · 102-739-0059 · 6375192-3 · 100347-9000-058 · +1 more
  17. O-RING NSN 5331-01-362-6414 P/N 100347-9000-056 · 102-45-0059 · 6375192-4 · 102-45-0059 · +1 more
  18. O-RING NSN 5331-01-362-5932 P/N MS28775-333 · MIL-P-25732 · MS28775-333 · MS28775-333 · +1 more
  19. O-RING NSN 5331-01-362-5045 P/N 721-7069909-40 · MS28775-334 · H861-1505-40 · MS28775-334 · +1 more
  20. O-RING NSN 5331-01-361-9785 P/N 5HA106 · 29503208 · 29503208 · 5HA106 · +1 more
  21. O-RING NSN 5331-01-361-4279 P/N MIL-R-83248/1-021 · MIL-R-83248/1 · M83248/1-021 · ADS1000-021 · +1 more
  22. O-RING NSN 5331-01-360-7723 P/N 711509-7 · 2C3-1632 PIECE 15 · 1HA437 · 1HA437 · +1 more
  23. O-RING NSN 5331-01-360-6013 P/N 10025321 · 5HA116 · 29503382 · 29503382 · +1 more
  24. O-RING NSN 5331-01-359-2592 P/N 801-6640828PC6-2 · MIL-R-83285GR80/AS568-230 · 801-6640828PC6-2 · SAE-AMS-R-83285 · +1 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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