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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 5331-00-948-6482 P/N 2000097 · 3751445 · 144119 · 3K-0360 · +33 more
  2. O-RING NSN 5331-00-691-0144 P/N 7377-138 · MS28775-138 · 3188560PC41 · 3188554PC37 · +33 more
  3. O-RING NSN 5331-00-599-2831 P/N N907 PIECE 20D · PRP013-11505 · 013-11505 · DS947032CPIECE9 · +33 more
  4. O-RING NSN 5331-00-585-7723 P/N 7377-020 · MS28775-020 · 904-10-002 · PRP568-020-4067-70 · +33 more
  5. O-RING NSN 5331-00-514-4804 P/N 5182977 · PRP902-8 · 125-415 · A395X8 · +33 more
  6. O-RING NSN 5331-00-291-7337 P/N AS29513-228 · 8682972 · PRP902-9 · PRP906-6 · +33 more
  7. O-RING NSN 5331-00-291-3073 P/N 7866-231 · GS570EM231 · TX90927-21 · PX1775-231 · +33 more
  8. O-RING NSN 5331-00-263-8034 P/N 7866-16 · GS570EM916 · 60-P-31-16 · MS29512-16 · +33 more
  9. O-RING NSN 5331-00-167-5174 P/N R47151 · 238290-910 · 501-6130 291 ITEM 35 · D50-0010 ITEM 3 · +33 more
  10. O-RING NSN 5331-00-167-5145 P/N 17107A262-17107A · D4000FF ITEN 12 · B62101-262 · AS3209-262 · +33 more
  11. O-RING NSN 5331-00-167-5139 P/N 153-19359 · DD-4618 REF NO 16 · 14-657 · LE121T SHT5, 820300-7 FN-10 · +33 more
  12. O-RING NSN 5331-00-165-1957 P/N 12267816-11 · DD-4639 REF NO. 14 · DD-4832 REF NO. 14 · DD-4697 REF NO 14 · +33 more
  13. O-RING NSN 5331-00-165-1952 P/N Z1057AV · A1978 PIECE 3 · Y49021-234 · AMS7276 · +33 more
  14. O-RING NSN 5331-00-060-4325 P/N 7377-147 · MS28775-147 · 4067-70-147 · PRP568-147-4067-70 · +33 more
  15. O-RING NSN 5331-00-984-3762 P/N PRP909-6-122-70 · PRP909-6-8307 · N0674 2-228 · 57664HCE24 · +32 more
  16. O-RING NSN 5331-00-984-3750 P/N S14-16 · PRP016-7507 · 15726 · 60108016 · +32 more
  17. O-RING NSN 5331-00-809-4365 P/N AS29561-013 · ES1005-1 · 013-1487 · 11-013CMPD7530-65 · +32 more
  18. O-RING NSN 5331-01-049-1292 P/N 1000754 · 16481 · 3-94-N-552-90 · 3-9-04N-9 · +32 more
  19. O-RING NSN 5331-00-729-4992 P/N 027-737-70 · AS3570-228 · 179353 · P48026-027 · +32 more
  20. O-RING NSN 5331-00-599-2766 P/N 7866-222 · 8989513 · 005-0005-51 · E0224PC22 · +32 more
  21. O-RING NSN 5331-00-579-3166 P/N MS28775-233 · 2-233-56-401 · MS28775-233 · MIL-P-25732 · +32 more
  22. O-RING NSN 5331-00-542-1421 P/N 011-1487 · PRP011-1487 · 5R17-6 · 5140-97-6 · +32 more
  23. O-RING NSN 5331-00-537-3888 P/N DD-4639 REF NO. 15 AND 16 · DD-4690 REF NO. 15 · 14-654 · DD-4833 REF NO 15 · +32 more
  24. O-RING NSN 5331-00-297-9986 P/N 7377-329 · 73916PC32 · 7261663 ITEM NO 5 · P48026-329 · +32 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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