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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 5331-01-736-1414 P/N 8842249 · 8838082 · 593-8842249-15 · 593-8838082-15 · +3 more
  2. O-RING NSN 5331-01-735-8599 P/N 2507294-56 · 2507294 · 2507294-56 · 2507294-56 · +3 more
  3. O-RING NSN 5331-01-734-9577 P/N 515-8843163-F149 · MIL-DTL-22050 · M22050-1-912 · AS568-912MILG22050 · +3 more
  4. O-RING NSN 5331-01-374-6940 P/N 06689030142 · A920136 PIECE 9 · A920136 PIECE 9 · C13373-1/2 PIECE 10 · +3 more
  5. O-RING NSN 5331-01-374-5198 P/N AS568-149 · AMS-R-83285GR80/AS568-149 · AMS-R-83285 · MIL-R-83285GR80/AS568-149 · +3 more
  6. O-RING NSN 5331-01-374-3472 P/N D-306-01-24 · M83248/2-392 · MIL-R-83248/2 · M83248/2-391 · +3 more
  7. O-RING NSN 5331-01-372-1274 P/N AMS-P-83461 · M83461/1-107 · M83461/1-107 · MIL-P-83461 · +3 more
  8. O-RING NSN 5331-01-372-1273 P/N 40490-9 FIND NO 26 · AMS-P-83461 · M83461/1-031 · MIL-P-83461 · +3 more
  9. O-RING NSN 5331-01-371-3751 P/N AMS7287 · M83485/1-469 · MIL-R-83485 · M83485/1-469 · +3 more
  10. O-RING NSN 5331-01-370-8827 P/N 561-8515-0026 · 561-8515-0026 · 561-515-0100 · KDAC-11018 · +3 more
  11. O-RING NSN 5331-01-369-7755 P/N 700018268 · 22-01-02 IT.20 DET 17-A · 22-01-03 ITEM 27 · 562-6702912 ITEM 27 · +3 more
  12. O-RING NSN 5331-01-363-4927 P/N MS28775-362 · AS568-362MIL-P-25732 · MIL-P-25732 · MS28775-362 · +3 more
  13. O-RING NSN 5331-01-360-2845 P/N AS43013-276 · ST3001-276 · AS3209-276 · AS43013-276 · +3 more
  14. O-RING NSN 5331-01-359-4323 P/N 0561C0030-2 · 9136-976 · 9136-976 · 0561C0030-2 · +3 more
  15. O-RING NSN 5331-01-358-3254 P/N MS9967-128 · 5330PL0671387 · MS9967-128 · 10325157 · +3 more
  16. O-RING NSN 5331-01-358-0602 P/N 09A136-400 · 600-400 · ST7M258-400 · ST7M258H400 · +3 more
  17. O-RING NSN 5331-01-357-0102 P/N AS28775-908 · MS28775-908 · MS28775-908 · 9-926-106222 · +3 more
  18. O-RING NSN 5331-01-355-2707 P/N AS3209-010 · MIL-R-83248/1-010 · MIL-R-83248/1 · V3D10075 ITEM 30 · +3 more
  19. O-RING NSN 5331-01-354-5697 P/N 91591592 · 91591592 · 91591592 · 91591592 · +3 more
  20. O-RING NSN 5331-01-354-2523 P/N 136-3388 · 2502774-36 · 2502774-36 · 2502774-36 · +3 more
  21. O-RING NSN 5331-01-354-0239 P/N MS9386-002 · AS9386 · MS9386-002 · SAE-AS9386 · +3 more
  22. O-RING NSN 5331-01-354-0235 P/N 2HG159 · 2HG159 · AS568-246 MIL-P-5510 · 2-246N507-90 · +3 more
  23. O-RING NSN 5331-01-353-8204 P/N 6151313 · 1073703 · 6151313 · 6532211 · +3 more
  24. O-RING NSN 5331-01-353-3473 P/N KS-9261-2 PIECE 37 · 195A/600 · KS-8342 · 195A/600 · +3 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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