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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 5331-00-166-1079 P/N M8324872-010 · M83248/2-010 · 010-19359 · 58-010-45 · +19 more
  2. O-RING NSN 5331-00-166-1055 P/N AS3209-046 · NAS1593-046 · AMS7276 · AS3209-046 · +19 more
  3. O-RING NSN 5331-00-165-1970 P/N 845-7286651 ITEM 36 · ST1000-256 · AS3209-256 · AMS7276 · +19 more
  4. O-RING NSN 5331-00-165-1968 P/N DD-4618 REF NO 14 · 549 · 309-D ITEM 8 · AS3209-253 · +19 more
  5. O-RING NSN 5331-00-165-1963 P/N Z1057AL · WE-00588-40U ITEM 21 · AS3209-245 · AMS7276 · +19 more
  6. O-RING NSN 5331-00-135-8622 P/N 7866-02 · PX-1775-02 · 10V60-141-02 · 457-60-03 · +19 more
  7. O-RING NSN 5331-00-054-6904 P/N PRP909-46711-70 · 909-46 · 113586 · P3052REVBPCAN6230-46SH3 · +19 more
  8. O-RING NSN 5331-01-213-6128 P/N 803-6397247-4XXX-15 · 200-2159562PC12 · 200-2439190PC10 · 200-2119563PC22 · +18 more
  9. O-RING NSN 5331-01-162-4706 P/N 339-7757 · PRP339-7757 · M83461/1-339 · 721-7069909-44 · +18 more
  10. O-RING NSN 5331-01-161-4498 P/N M83461/1-455 · AMS-P-83461/1 · MIL-P-83461/1 · M83461/1-455 · +18 more
  11. O-RING NSN 5331-01-127-0971 P/N ARP-210V · M3776-2569 PC NO 19 · HI-1457-1000 ITEM NO 20 · NAS1594-210 · +18 more
  12. O-RING NSN 5331-01-024-2506 P/N MS28775-031 · 40444-4 FIND 26 · P48026-031 · PRP568-031-4067-70 · +18 more
  13. O-RING NSN 5331-01-014-8959 P/N 1259331-16 · 916-7377AN · 737-16 · 3-16N304-7 · +18 more
  14. O-RING NSN 5331-01-014-4296 P/N AS29513-281 · 7866-281 · 60-P-31-281 · PX1775-281 · +18 more
  15. O-RING NSN 5331-01-010-3369 P/N 500277 · SE121IN FN-17 SHT 2 · AS3209-048 · AMS7276 · +18 more
  16. O-RING NSN 5331-01-006-9034 P/N 26093 · 30159 ITEM 18 · ST1000-204 · AS3209-204 · +18 more
  17. O-RING NSN 5331-00-959-1562 P/N 7377-045 · 0100045-001 · P48026-045 · 4067-70-045 · +18 more
  18. O-RING NSN 5331-00-912-5040 P/N 7377-155 · PRP568-155-4067-70 · 4067-70-155 · MS28775-155 · +18 more
  19. O-RING NSN 5331-00-826-9927 P/N PRP902-2-142-7 · 100T056 · S8057K2 · S8057K2 · +18 more
  20. O-RING NSN 5331-00-815-2450 P/N 443-846-70 · PRP443-7377 · 443-7377 · RWS-568-443 · +18 more
  21. O-RING NSN 5331-00-806-7772 P/N 143-7377 · 7377-143 · MS28775-143 · PRP568-143-4067-70 · +18 more
  22. O-RING NSN 5331-00-763-2637 P/N 7866-381 · 60-P-31-381 · 028-13079 · PX1775-381 · +18 more
  23. O-RING NSN 5331-01-081-9806 P/N 7377-041 · RS26110-04108 · P48026-041 · 10V70-332-28775-039 · +18 more
  24. O-RING NSN 5331-01-067-7057 P/N 7866-389 · 60-P-31-389 · PX1775-389 · 10V60-141-389 · +18 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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