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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 5331-00-167-5129 P/N DD-4729 ITEM NO 14 · 7261661 PC 16 · AS3209-148 · 6843333-148 · +26 more
  2. O-RING NSN 5331-00-166-8412 P/N NAS1593-221 · 701-2298824 PIECE 389 · 122-2298838 PIECE 389 · AMS7276G · +26 more
  3. O-RING NSN 5331-00-166-1041 P/N 041 C0MP 19357 · 2-041V747-75 · AS3209-041 · M83248/1-041 · +26 more
  4. O-RING NSN 5331-00-131-7062 P/N 7768001 · P40405 · 6703225 · PRP568-114-4120-7 · +26 more
  5. O-RING NSN 5331-00-005-0482 P/N 160-19357 · PRP160-19357 · 649-393-160-0 · 6843333-160 · +26 more
  6. O-RING NSN 5331-00-003-9157 P/N 7866-026 · R1307P026 · 60-P-31-0039157 · 853992-00 · +26 more
  7. O-RING NSN 5331-01-113-2083 P/N 2-130N756-75 · 07A568-130N · 130-7757 · PRP568-130-4367-70 · +25 more
  8. O-RING NSN 5331-01-393-2861 P/N 04811-00180 · 04811-00180 · B05-L/070 · B05-L/050 · +25 more
  9. O-RING NSN 5331-01-046-0629 P/N 014-711-70 · 014-7757 · PRP014-7757 · PL44616-121H FIND NO. 78 · +25 more
  10. O-RING NSN 5331-00-585-6632 P/N 140-8309 · PRP140-8309 · PRP568-140-4067-70 · 4067-70-140 · +25 more
  11. O-RING NSN 5331-00-580-6044 P/N 342-846-70 · PRP6227-45 · 342-7377 · 7377-342 · +25 more
  12. O-RING NSN 5331-00-580-5937 P/N 008 · 5R17-3 · S8057AY3 · S8057K3 · +25 more
  13. O-RING NSN 5331-00-579-8157 P/N 501239 · 7377-327 · P48026-327 · 4067-70-327 · +25 more
  14. O-RING NSN 5331-00-448-6753 P/N 1KK531 · 801-6640793-PC.14-2 · SF-10677 PIECE 5 · 74022PC51 · +25 more
  15. O-RING NSN 5331-00-435-9355 P/N 7866-034 · GS570EM034 · 60-P-31-034 · 02654 · +25 more
  16. O-RING NSN 5331-00-425-0649 P/N 007-19359 · PRP007-139359 · PRP568-007-9009-90 · NAS1594-007 · +25 more
  17. O-RING NSN 5331-00-298-9984 P/N GS570EM334 · 7866-334 · 60-P-31-334 · PX1775-334 · +25 more
  18. O-RING NSN 5331-00-292-7564 P/N GS570EM244 · 7866-244 · 60-P-31-244 · PX1775-244 · +25 more
  19. O-RING NSN 5331-00-265-1092 P/N GS570EM219 · 7866-219 · PX1775-219 · 10V60-141-219 · +25 more
  20. O-RING NSN 5331-00-265-1088 P/N MS29513-027 · 7866-027 · 60-P-31-027 · 212-558-027 · +25 more
  21. O-RING NSN 5331-00-263-8035 P/N MS29512-20 · PRP920-7866 · 7866-920 · 920-7866 · +25 more
  22. O-RING NSN 5331-00-263-8013 P/N GS570EM243 · 7866-243 · 60-P-31-243 · 05-MS29513-243 · +25 more
  23. O-RING NSN 5331-00-167-5143 P/N 298365-200ITEM8 · 298365-100ITEM8 · DD-4686 REF NO 14 · DD-4836 ITEM 14 · +25 more
  24. O-RING NSN 5331-00-167-5125 P/N PRP143-16207 · 143-16207 · M83485/1-143 · AS3209-143 · +25 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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