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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 5331-00-741-0674 P/N 7410674 · 2194446 · 5F1678 · 6227-0-19 · +10 more
  2. O-RING NSN 5331-00-725-4561 P/N 252-1467 · AMS R 7362 · MS29561-252 · 5331PL2028624 · +10 more
  3. O-RING NSN 5331-00-690-9743 P/N MS9021-018 · 182481 · PRP568-018-4024-65 · AS3578-018 · +10 more
  4. O-RING NSN 5331-00-684-7784 P/N MS29561-111 · AS29561-111 · MILR7362 · 5331PL1780087 · +10 more
  5. O-RING NSN 5331-00-684-2547 P/N S8171K27 · S8171K27 · S8171K27 · AMS-R-7362 · +10 more
  6. O-RING NSN 5331-00-641-0799 P/N 98-9023-127 · 20312-093Z114 · AS568C-127 · 5331PL0755626 · +10 more
  7. O-RING NSN 5331-00-641-0778 P/N 5331PL1279789 · PD5330-217-18 · 803-4384536-3XX 29MILP5516 · 0001.0029R · +10 more
  8. O-RING NSN 5331-00-618-6025 P/N R93821 · 204805 · PRP568-007-4024-65 · AS3578-007 · +10 more
  9. O-RING NSN 5331-00-618-2518 P/N PRP1847-222 · 5140-97-27 · MS29561-222 · 2-222-47-071 · +10 more
  10. O-RING NSN 5331-00-618-0800 P/N PRP568-335-4067-70 · MS28775-335 · MS28775-335 · MS28775-335 · +10 more
  11. O-RING NSN 5331-00-585-0873 P/N 9121210 · 6700420 · 6700420 · 9121210 · +10 more
  12. O-RING NSN 5331-00-584-9555 P/N PRP568-446-4067-70 · MS28775-446 · 5331PL0810198 · MS28775-446 · +10 more
  13. O-RING NSN 5331-00-582-7084 P/N 334-7407 · 203907 · S7-19-10V70 · 622737 · +10 more
  14. O-RING NSN 5331-00-582-2531 P/N AS568-115 · SAE AMS3238 · AS568B-115 · 654371-115 · +10 more
  15. O-RING NSN 5331-00-580-6588 P/N 34-593 · 7906 PL REV A 15 · 7906 REV A · 25K40412 · +10 more
  16. O-RING NSN 5331-00-579-6518 P/N PRP568-278-4024-65 · AS3578-278 · AMS7271H · 5331PL1279487 · +10 more
  17. O-RING NSN 5331-00-550-6748 P/N 182507 · PRP568-10-4024-65 · 253587 · AS3578-910 · +10 more
  18. O-RING NSN 5331-00-542-1609 P/N 133-17107 · 598-700-1894228REVALINE5 · MS17413-133 · 8566-656 · +10 more
  19. O-RING NSN 5331-00-537-3923 P/N AMS 7276 · AS3209-282 · MILR83248 · M83248/1-282 · +10 more
  20. O-RING NSN 5331-00-536-6835 P/N 01-435-0366-4 PIECE 65 · CM1-220-B46 · X2708 · AS568-220 · +10 more
  21. O-RING NSN 5331-00-528-5151 P/N S8990-017 · S8990-017 · S8990-17 · S8990-017 · +10 more
  22. O-RING NSN 5331-00-472-6954 P/N 1320331-20 · 115J565ITEM3 · 115J565ITEM3 · AS3582-028 · +10 more
  23. O-RING NSN 5331-00-463-0225 P/N 2-226S604-70 · 07A568-226S · B86002-226S · B6002-226S · +10 more
  24. O-RING NSN 5331-00-457-2736 P/N BJ4554-21SA4PC40 · H138-008 · 6803PC25 · 34655-152 · +10 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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