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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.

Filter

53,078 items

  1. O-RING NSN 5331-00-420-0700 P/N AS9386-038 · AS9386-038 · AS9386-038 · MS9386-038 · +5 more
  2. O-RING NSN 5331-00-420-0625 P/N S9027G043 · AS3551-043 · MS9241-043 · 47-071 2-043 · +5 more
  3. O-RING NSN 5331-00-415-2198 P/N 118-11737 · PRP118-11737 · MS9386-118 · A-118TH1167 · +5 more
  4. O-RING NSN 5331-00-414-4187 P/N AS9386-119 · MS9386-119 · 5331PL1023826 · 5331PL1695367 · +5 more
  5. O-RING NSN 5331-00-412-4455 P/N 40003861-1 · 3-906 S604-70 · AS568-906AMS330 4 · 3-906-S604-70 · +5 more
  6. O-RING NSN 5331-00-412-4454 P/N AS568-916 · 3-916 S604-70 · 3-916-S604-70 · 3-16S604-7 · +5 more
  7. O-RING NSN 5331-00-412-1156 P/N 334-7507 · AS568-334 · ASTM D2000 · 23111-99-0323 · +5 more
  8. O-RING NSN 5331-00-406-0882 P/N D-67500-9 · MS9385-02 · 5331PL0656952 · MS9385-02 · +5 more
  9. O-RING NSN 5331-00-406-0834 P/N 034-11737 · PRP034-11737 · MS9386-034 · A-034TH1167 · +5 more
  10. O-RING NSN 5331-00-405-6022 P/N 306 ITEM 3 · AS568-005 · AS568-005MIL-G- 21569B CL1 · 2-5N219-7 · +5 more
  11. O-RING NSN 5331-00-404-8230 P/N PRP568-174-4024-25 · AS3578-174 · MS9021-174 · 2-174 N506-65 · +5 more
  12. O-RING NSN 5331-00-404-4583 P/N 924-2347 · PRP924-2347 · PRP568-924-3110-70 · B-24SR533-70 · +5 more
  13. O-RING NSN 5331-00-402-0063 P/N 366581R1 · 366581R1 · AS568-146 · D2000 M3CH714 · +5 more
  14. O-RING NSN 5331-00-352-0328 P/N 364313 · AMS3209 · AS568-231 · 2-231C557-7 · +5 more
  15. O-RING NSN 5331-00-345-5189 P/N 232232 · XD1GX3471B · 154081 · 154081 · +5 more
  16. O-RING NSN 5331-00-338-1382 P/N AMS7259D · AS3581-221 · MILR83248 · M83248/2-221 · +5 more
  17. O-RING NSN 5331-00-325-6310 P/N 5660799 · 5660799 · 25K40312 · AS568-237 · +5 more
  18. O-RING NSN 5331-00-324-7731 P/N 00301-035F70 · ST7M251-10 · LRC63047-10 · ST7M251-10 · +5 more
  19. O-RING NSN 5331-00-301-5290 P/N M25988/1-029 · MIL-DTL-25988 · MIL-R-25988 · 5331PL2130934 · +5 more
  20. O-RING NSN 5331-00-297-6015 P/N 6CS334 · LL299-18 · 6CS334 · 20322 · +5 more
  21. O-RING NSN 5331-00-297-5374 P/N 2472-216WPC12 · 2472-216WPC12 · 315-4810-231899ALT3PC12 · 435-4810-232273ALT2PC12 · +5 more
  22. O-RING NSN 5331-00-291-7288 P/N 147277 · AS3569-115 · AN123968 · 299C411P115 · +5 more
  23. O-RING NSN 5331-00-291-5578 P/N 902-27 · PRP902-27 · PRP902-27 · 11243 · +5 more
  24. O-RING NSN 5331-00-291-3301 P/N AS3569-008 · AN123958 · 5040-3 · A25141-008 · +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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