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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 5331-00-689-6471 P/N 24-49406 FIND 5 · 24-49711 FIND NO 7 · 24-49813 FIND NO 7 · 3-906E515-80 · +9 more
  2. O-RING NSN 5331-00-689-6460 P/N MS28775-023 · 479V203CP · 21-19574PC64CP · 21-19574PC64 · +9 more
  3. O-RING NSN 5331-00-684-2286 P/N PRP568-254-4024-65 · AMS7271H · AS3578-254 · AS3578 · +9 more
  4. O-RING NSN 5331-00-676-6184 P/N 101F705U01 · 010E515-8 · 2-010 E515-80 · 29-00122 PC 6 · +9 more
  5. O-RING NSN 5331-00-641-8291 P/N 302 · DE69444 · 4369444 · 4369444-7 · +9 more
  6. O-RING NSN 5331-00-618-6110 P/N A-A-59588 CL1B GR50 · MS28775-259 · MIL-P-25732C · AN6230-37 · +9 more
  7. O-RING NSN 5331-00-612-6148 P/N AS568-014 · ASTM D2000 M2BG910B14EA14EF2 · 2-014N507-90 · 120053 · +9 more
  8. O-RING NSN 5331-00-604-8094 P/N 5187310 · 5187310 · 5187310 · B5187310 · +9 more
  9. O-RING NSN 5331-00-599-3036 P/N PRP902-9 · 43459 · R8910B1-2 702REVAPC12 · W3707-3 · +9 more
  10. O-RING NSN 5331-00-599-0981 P/N 28548-104-11 · 28548-104 · 67H90-16 · B86002-916S · +9 more
  11. O-RING NSN 5331-00-585-8486 P/N ARP906PC10V70-234 · 575R877H08 · 598-700-1893079REVAPC28 · 593-522-1862920PC3 · +9 more
  12. O-RING NSN 5331-00-585-7725 P/N P48026-002 · PRP568-002-4067-70 · MS28775-002 · MS28775-2 · +9 more
  13. O-RING NSN 5331-00-585-4499 P/N 903243C1 · 344665-214 · 34665-214 · 903243C1 · +9 more
  14. O-RING NSN 5331-00-585-3350 P/N 317S22 · 182494 · 69890-22 · PRP568-217-4024-65 · +9 more
  15. O-RING NSN 5331-00-585-3346 P/N 69890-18 · PRP568-213-4024-65 · 199059 · AS3578-213 · +9 more
  16. O-RING NSN 5331-00-584-1222 P/N 182379 · PRP568-015-4024-65 · AS3578-015 · MS9021-015 · +9 more
  17. O-RING NSN 5331-00-582-2856 P/N 182506 · AMS7271 · AS3578-908 · 5331PL0962239 · +9 more
  18. O-RING NSN 5331-00-582-1152 P/N PRP007-11646 · 007-11646 · B63115-7 · PRP568-007-1133-60 · +9 more
  19. O-RING NSN 5331-00-580-0821 P/N ASTM-D2000 M2AA810A13EAA4F17 · AS568B-013CP · 013E515-8CP · 22-38625 PC 9 · +9 more
  20. O-RING NSN 5331-00-579-7549 P/N NAS617-3 · SAE-AMS-R-7362 · LD261-0013-0003 · 5331PL0146649 · +9 more
  21. O-RING NSN 5331-00-576-9600 P/N 11-151B · PRP568-151-4024-25 · AS3578-151 · MS9021-151 · +9 more
  22. O-RING NSN 5331-00-559-4015 P/N NAS1594-010 · AS568-010MILR25897CL2 · 281770-0001 ITEM 61 · 280974-0001PC61 · +9 more
  23. O-RING NSN 5331-00-558-2310 P/N 013-7446 · PRP568-013-4024-65 · AS568-013AMS7271 · AS3578-013 · +9 more
  24. O-RING NSN 5331-00-550-7700 P/N PRP909-30 · 356A30 · 11241 · 6230-30 · +9 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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