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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 5331-00-930-3041 P/N AS3582-154 · MS9068-154 · 1PS26 · 2-154 · +7 more
  2. O-RING NSN 5331-00-927-1198 P/N 594857 · 594857 · AS9967 · MS9967-013 · +7 more
  3. O-RING NSN 5331-00-905-4480 P/N 7140257P6 · 7140257P6 · P700C438 · ARP568-438SILIC0NE · +7 more
  4. O-RING NSN 5331-00-904-4125 P/N PRP568-443-4024-65 · AS3578-443 · 11-443-7464-65 · 2-443N506-7 · +7 more
  5. O-RING NSN 5331-00-900-7399 P/N 3896 · AS3582-022 · 5331PL0974191 · MS9068-022 · +7 more
  6. O-RING NSN 5331-00-900-4433 P/N 26316026-07 · M3581-003 · M83248/2-003 · 2-3 · +7 more
  7. O-RING NSN 5331-00-859-0396 P/N 5H-6734 · AS568B-246 · D-2000 · 5H-6734 · +7 more
  8. O-RING NSN 5331-00-851-1536 P/N 364-48756-000 ITEM 25 · 028-13525-000 · AS568-282 · AMS3209I · +7 more
  9. O-RING NSN 5331-00-851-1211 P/N S8990-541 · S8990-541 · S8990-541 · S8990-541 · +7 more
  10. O-RING NSN 5331-00-846-1593 P/N EW11352-6 · AS3551-255 · AMS 7272 · EW11352-6 · +7 more
  11. O-RING NSN 5331-00-843-4611 P/N PRP270-7446 · 270-7446 · PRP568-270-4024-65 · AS568-270AMS7271 · +7 more
  12. O-RING NSN 5331-00-841-8564 P/N PRP1847&254 · 5331PL0810436 · MS29561-254 · STD3000C59 · +7 more
  13. O-RING NSN 5331-00-838-8048 P/N 1497 · 6763076 · HX1692 · SE-703-1 · +7 more
  14. O-RING NSN 5331-00-829-2608 P/N 176838 · AS3582-116 · 650468 · 2-116S604-70 · +7 more
  15. O-RING NSN 5331-00-829-2607 P/N GS570J2G212 · PRP568-212-1235-70 · AS3582-212 · MS9068-212 · +7 more
  16. O-RING NSN 5331-00-825-1437 P/N 007-9357 · 902-2X9357 · 2-7XB318-7 · S7-2PC10V70-234 · +7 more
  17. O-RING NSN 5331-00-821-9783 P/N 121-1487 · U515893 · MS29561-121 · AS29561-121 · +7 more
  18. O-RING NSN 5331-00-820-2041 P/N 2-10S469-4 · AS568-010 · AMS3301 · 2-10S469-4 · +7 more
  19. O-RING NSN 5331-00-819-5282 P/N PRP914-9-142-70 · MS29561-021 · 5331PL2136917 · MS29561-021 · +7 more
  20. O-RING NSN 5331-00-808-5796 P/N AS29561-259 · PRP909-37142-70 · 5430-37612-45 · S8057K147 · +7 more
  21. O-RING NSN 5331-00-808-0087 P/N S8057K114 · S8057K114 · S8057K114 · MS29561-120 · +7 more
  22. O-RING NSN 5331-00-800-6350 P/N D38796-3-4INCH · 700558 · MS29561-027 · MS29561-027 · +7 more
  23. O-RING NSN 5331-00-765-2104 P/N ARP568-932MILP25732 · AS568-932 · MIL-P-25732 · 5331PL1279840 · +7 more
  24. O-RING NSN 5331-01-645-7987 P/N AS3581-910 · 4410591-9100 · FVL4E2-002-8 ITEM NO 61 · FVL4E2-003-8 ITEM NO 61 · +7 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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