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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 5331-00-291-3299 P/N 6706778 · 6706778 · 100111E5 · AS3569-010 · +5 more
  2. O-RING NSN 5331-00-291-1990 P/N 7708800 · 7708800 · 7708800 · 7708800 · +5 more
  3. O-RING NSN 5331-00-290-9392 P/N AS3570-265 · 617-90 · AN123925 · 5330002909392 · +5 more
  4. O-RING NSN 5331-00-290-8763 P/N 12067P11 · 2214329 · 230878 · 2214329 · +5 more
  5. O-RING NSN 5331-00-283-4609 P/N 2-027C557-7 · AS568-027 · AMS3209 · OR-027C · +5 more
  6. O-RING NSN 5331-00-279-9309 P/N M25988/1-022 · MIL-R-25988/1 · MIL-DTL-25988/1 · 5331PL0844921 · +5 more
  7. O-RING NSN 5331-00-265-1079 P/N 221-C-69 · MS29513-221 · 24901 · MS29513-221 · +5 more
  8. O-RING NSN 5331-00-263-7994 P/N PRP902-5-122-70 · 287-1037P3 · SCD84316-2 · 53302637994 · +5 more
  9. O-RING NSN 5331-00-251-0499 P/N 8075083PC8050520 · 8075078PC8050520 · 8050520 · 8050520 · +5 more
  10. O-RING NSN 5331-00-250-1218 P/N A1633-9 · AS3570-210 · AN123870 · AN123870 · +5 more
  11. O-RING NSN 5331-00-250-1217 P/N 100111E11 · 5100-11E · AS3570-113 · AN123866 · +5 more
  12. O-RING NSN 5331-00-245-6767 P/N S9413-215 · S9413-215 · S9413-215 · S9413-215 · +5 more
  13. O-RING NSN 5331-00-242-6640 P/N 182195 · AS3570-111 · AN123864 · 2-111N180-70 · +5 more
  14. O-RING NSN 5331-00-242-6636 P/N AS3570-008 · AN123858 · AN3F718 · 216957 · +5 more
  15. O-RING NSN 5331-00-242-6633 P/N 100111E139 · AS3569-224 · AN123984 · A-224AN123984 · +5 more
  16. O-RING NSN 5331-00-240-1954 P/N AM35004C · 35014C · AS3570-236 · AN123896 · +5 more
  17. O-RING NSN 5331-00-222-1829 P/N 028-11737 · PRP028-11737 · MS9386-028 · A-028TH1167 · +5 more
  18. O-RING NSN 5331-00-222-1826 P/N 163-11737 · PRP163-11737 · AS9386-163 · MS9386-163 · +5 more
  19. O-RING NSN 5331-00-222-1817 P/N PRP113-11737 · 113-11737 · MS9386-113 · A-113TH1167 · +5 more
  20. O-RING NSN 5331-00-222-1707 P/N PRP341-11737 · 341-11737 · MS9386-341 · A-341TH1167 · +5 more
  21. O-RING NSN 5331-00-199-3800 P/N S8990-32 · S8990-32 · S8990-32 · S8990-32 · +5 more
  22. O-RING NSN 5331-00-198-6160 P/N S4105-770816ALT2PC7 · S4105-770816ALT2PC7 · S4105-770816ALT2PC7 · 522494 · +5 more
  23. O-RING NSN 5331-00-182-3566 P/N D75615PC7 · D75615PC7 · 215-4497905PC110 · SAE AS568B-392 · +5 more
  24. O-RING NSN 5331-00-182-3192 P/N 906-20-739-90 · 3-920N168-80 · 9-20-4081-85 · 3-920N168-80 · +5 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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