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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 5331-01-215-6748 P/N MIL-P-25732/AS568-906 · A6689.906.303 · A15688PC19 · 9884/PC 25 · +3 more
  2. O-RING NSN 5331-01-214-3768 P/N MS28775-114 · 5331PL1034644 · MS-28775-114 · VD139-5-941 ITEM 9 · +3 more
  3. O-RING NSN 5331-01-213-8345 P/N MS28775-113 · MS28775-113 · S2A113 · S10A103-055 · +3 more
  4. O-RING NSN 5331-01-213-7003 P/N AS568-395 · ASTM D2000-04 · GR M3CH714A25B34EO16EO36 · 2-395 N674-70 · +3 more
  5. O-RING NSN 5331-01-212-4624 P/N AMS7259D · AS3581-343 · MIL-R-83248/2 · M83248/2-343 · +3 more
  6. O-RING NSN 5331-01-212-4623 P/N AS3581-342 · AMS7259 · M83248/2-342 · MIL-R-83248/2 · +3 more
  7. O-RING NSN 5331-01-212-0124 P/N MS9967-021 · 5331PL2165299 · MS9967-021 · 9638221132 · +3 more
  8. O-RING NSN 5331-01-212-0123 P/N DEA-00339 · D-21455 · D-21455 · D-21455 · +3 more
  9. O-RING NSN 5331-01-211-7354 P/N SOR-64 BUNA N · SOR64 · S0R64 · SOR-64-BUNA · +3 more
  10. O-RING NSN 5331-01-211-6074 P/N 24502 · 902-21 · 216.07377 · 902-21 · +3 more
  11. O-RING NSN 5331-01-211-3124 P/N AMS7259 · AS3581-163 · MIL-R-83248/2 · M83248/2-163 · +3 more
  12. O-RING NSN 5331-01-211-1496 P/N MS28775-244 · MIL-P-25732 · 5331PL0889379 · MS28775-244 · +3 more
  13. O-RING NSN 5331-01-210-2835 P/N M25988/4-162 · MIL-DTL-25988/4 · MIL-R-25988/4 · 2-162L806-80 · +3 more
  14. O-RING NSN 5331-01-210-2834 P/N 1354-023 · MIL-DTL-25988/4 · MIL-R-25988/4 · M25988/4-006 · +3 more
  15. O-RING NSN 5331-01-209-9419 P/N AMS7259D · AS3581-138 · M83248/2-138 · MIL-R-83248/2 · +3 more
  16. O-RING NSN 5331-01-208-6753 P/N AS568B-904 · AMS3302G · A60W1175V04 · 2730373 ITEM 14 · +3 more
  17. O-RING NSN 5331-01-208-1322 P/N 406-1041 · 2-458N674-70 · WG115458 · 2-458 N674-70 · +3 more
  18. O-RING NSN 5331-01-207-1717 P/N AS568-115 SB715BE1E3F1 · 2-115N219-7 · 2-115 N4771-70 · N0219 2-115 · +3 more
  19. O-RING NSN 5331-01-205-9769 P/N 955981-6 · 5331PL0860291 · 955981 · SYB4168 · +3 more
  20. O-RING NSN 5331-01-204-9063 P/N 820-2178672-4 · 820-2178672-4 · AS29513-015 · MS29513-015 · +3 more
  21. O-RING NSN 5331-01-203-2234 P/N 1188J33-001 · 1188J33-001 · 1188J33-P1 · 1188J33-001 · +3 more
  22. O-RING NSN 5331-01-201-3623 P/N 3043923 · 2 0095-121 · 3043923 · 2 0095-121 · +3 more
  23. O-RING NSN 5331-01-201-3348 P/N AS358-363 · AS3581-363 · AMS7259 · M83248/2-363 · +3 more
  24. O-RING NSN 5331-01-200-7521 P/N UA9762 · UA9762 · SA568-115 · ASTM D2000-04 · +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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