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 5331-01-007-1576 P/N 1354-011 · MIL-R-25988 · 5-180L308-80 · 5-180L1218-80 · +4 more
  2. O-RING NSN 5331-01-006-9486 P/N MIL-R-25988/1 · M25988/1-005 · MIL-DTL-25988/1 · 2-005L677-70 · +4 more
  3. O-RING NSN 5331-01-006-9035 P/N AS3209-429 · M83248/1-429 · MIL-R-83248/1 · 5331PL0812610 · +4 more
  4. O-RING NSN 5331-01-006-5479 P/N GS570J2G328 · AS3582-328 · MS9068-328 · 2-328 S604-70 · +4 more
  5. O-RING NSN 5331-01-006-2137 P/N AS568-914MILG22050 · B14SR728-65 · ARP568-013MILG2 2050 · ARP568-914MILG2 2050 · +4 more
  6. O-RING NSN 5331-01-006-2130 P/N AS3581-236 · AMS7259 · MIL-R-83248/2 · M83248/2-236 · +4 more
  7. O-RING NSN 5331-01-006-2107 P/N AS3209-464 · AMS7276 · M83248/1-464 · MIL-R-83248CTY1CL1 · +4 more
  8. O-RING NSN 5331-01-006-2104 P/N AS3209-432 · MIL-R-83248/1 · MIL-R-83248CTY1CL1 · M83248/1-432 · +4 more
  9. O-RING NSN 5331-01-006-0329 P/N AS3209-371 · M83248/1-371 · MIL-R-83248/1 · 2-371V1226-75 · +4 more
  10. O-RING NSN 5331-01-005-4047 P/N AS3209-433 · MIL-R-83248/1 · M83248/1-433 · M83248-1-433 · +4 more
  11. O-RING NSN 5331-01-005-4046 P/N AS3209-316 · MIL-R-83248/1 · M83248/1-316 · 2-316V0747-75 · +4 more
  12. O-RING NSN 5331-01-005-4045 P/N AS3209-323 · MIL-R-83248/1 · M83248/1-323 · 2-323V1226-75 · +4 more
  13. O-RING NSN 5331-01-005-4044 P/N AS3209-315 · M83248/1-315 · MIL-R-83248/1 · 2-315V1226-75 · +4 more
  14. O-RING NSN 5331-01-005-2312 P/N DD-4531 REF NO 14 · AS3209-455 · M83248/1-455 · MIL-R-83248/1 · +4 more
  15. O-RING NSN 5331-01-005-2311 P/N AS3209-454 · AS568-454 2MHK810A1-10B38EF31E0- · MIL-R-83248/1 · M83248/1-454 · +4 more
  16. O-RING NSN 5331-01-005-0538 P/N AS3209-392 · M83248/1-392 · MIL-R-83248/1 · MS28775-392 · +4 more
  17. O-RING NSN 5331-01-005-0529 P/N AS3209-382 · M83248/1-382 · MIL-R-83248/1 · 2-382V1226-75 · +4 more
  18. O-RING NSN 5331-01-005-0517 P/N AS3209-201 · MIL-R-83248/1 · M83248/1-201 · 2-201V0747-75 · +4 more
  19. O-RING NSN 5331-01-005-0516 P/N 649-393-178-0 · M83248/1-178 · MIL-R-83248/1 · 5331PL2333154 · +4 more
  20. O-RING NSN 5331-01-004-5035 P/N 928J669PIECE80 · MS28775-170 · MS28775-170 · 2-170 · +4 more
  21. O-RING NSN 5331-01-004-5034 P/N 6V-1454 · AS568-336 · 6V-1454 · 6V-1454 · +4 more
  22. O-RING NSN 5331-01-003-8305 P/N 2-008N507-90 · 2-008N507-9 · 2-008 N507-90 · 101210-01 · +4 more
  23. O-RING NSN 5331-01-003-7591 P/N YMD-5557-R ITEM · AS568-433 · 1205A1041 · 530-10090-1 · +4 more
  24. O-RING NSN 5331-00-993-9652 P/N PRP568-341-4024-65 · AS3578-341 · MS9021-341 · 2-341 N506-65 · +4 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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