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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 5331-00-469-3818 P/N 243060PC63 · D2000 GR M2AA810A13EA14F17 · AS568-228 · 2-228-E540-80 · +6 more
  2. O-RING NSN 5331-00-466-0469 P/N 018-11737 · PRP018-11737 · 201-24801 · MS9386-018 · +6 more
  3. O-RING NSN 5331-00-462-4235 P/N 932-2347 · PRP932-2347 · PRP568-932-3110-70 · 74453028008 · +6 more
  4. O-RING NSN 5331-00-451-9571 P/N JB259REVBPC109 · AS568-109 · A-2095 · 2-109 N674-70 · +6 more
  5. O-RING NSN 5331-00-451-6543 P/N AS568B-331 · AS5168B-331 · 0065234.53.63 · 52561A331 · +6 more
  6. O-RING NSN 5331-00-450-7423 P/N 027-11737 · PRP027-11737 · MS9386-027 · A-027TH1167 · +6 more
  7. O-RING NSN 5331-00-436-7107 P/N 258237 · 258237-901 · 25C85-21 · AS568-021 · +6 more
  8. O-RING NSN 5331-00-435-8496 P/N 230-3238 · 243060PC61 · AS568-230 2AA815A13F17EA14 · AS568-230 · +6 more
  9. O-RING NSN 5331-00-435-5285 P/N 457873 · 457873 · AS9386-216 · MS9386-216 · +6 more
  10. O-RING NSN 5331-00-432-6765 P/N AS568-904MILG21610TY2 · 5331PL0792674 · 633-9278-58 · 651-7670-8 · +6 more
  11. O-RING NSN 5331-00-420-7590 P/N MS28775-153 · 11-153 · MS28775-153 · 5331PL0166557 · +6 more
  12. O-RING NSN 5331-00-418-2148 P/N 2574737-11 · 2574737-11 · 2574737-11 · N219-735-073-70DUR · +6 more
  13. O-RING NSN 5331-00-418-2147 P/N 2574737-10 · 2574737-10 · 2574737-10 · N219-5-234-143-70DUR · +6 more
  14. O-RING NSN 5331-00-414-2753 P/N MS9967-112 · AS9967 · 5331PL1802768 · 5331PL0844948 · +6 more
  15. O-RING NSN 5331-00-405-6027 P/N AS568-359 · 59223 · 2-359MILP25732 · MS28775-359 · +6 more
  16. O-RING NSN 5331-00-377-0921 P/N ZZL-6522-12 · ZZL-6522-12D · MIL-R-25988/1 · MIL-DTL-25988/1 · +6 more
  17. O-RING NSN 5331-00-364-9922 P/N S9413-022 · S9413-022 · S9413-022 · S9413-022 · +6 more
  18. O-RING NSN 5331-00-338-1440 P/N AMS7259 · AS3581-225 · MILR83248 · M83248/2-225 · +6 more
  19. O-RING NSN 5331-00-333-4384 P/N AS568B-230 · AS568-230 · ASTM-D2000 M7BG810 · 1H-5728 · +6 more
  20. O-RING NSN 5331-00-328-9131 P/N ARP568-018-11647 · 352776 · HPS55-018 · 34053 FIND 32 · +6 more
  21. O-RING NSN 5331-00-318-3332 P/N FSN43-3ITEM265 · FSN62-1PC4 · SF324-5N0A · 4FSN62 · +6 more
  22. O-RING NSN 5331-00-297-6045 P/N 914-32 · 571-2200-1301217REVAPC2 · AS568B132 · 21722 · +6 more
  23. O-RING NSN 5331-00-291-5079 P/N AMS-P-5315 · AS568-050 · MIL-G-21569B · AS568-050 · +6 more
  24. O-RING NSN 5331-00-291-3300 P/N AN123959 · U6988 · AS3569-009 · AN123959 · +6 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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