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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 5331-00-168-5537 P/N 610-0004-001 · N0103 2-006 · 2-06N103-70 · 5427-1 · +2 more
  2. O-RING NSN 5331-00-159-3476 P/N SAE AS568 · 2-003 C1124-70 · 2-003 N674-7 · 2-003C1124-70 · +2 more
  3. O-RING NSN 5331-00-155-4877 P/N 225-11646 · B67112-225 · PRP568-225-1133-60 · C007-225 · +2 more
  4. O-RING NSN 5331-00-152-5408 P/N MIL DTL 33060 · AS568-040 · ARP568-040MILG22050 · A6689-040-235 · +2 more
  5. O-RING NSN 5331-00-152-3138 P/N N14992-117 · 4903009 · 4903009 · 490309 · +2 more
  6. O-RING NSN 5331-00-150-1587 P/N M25988/2-266 · MIL-DTL-25988/2 · M25988/2-266 · S9412-266 · +2 more
  7. O-RING NSN 5331-00-148-1409 P/N 1FX58 · 72242 · F37030-242 · 72242 · +2 more
  8. O-RING NSN 5331-00-148-1394 P/N F37030-265 · 28212PC11 · 73043 · 20478 · +2 more
  9. O-RING NSN 5331-00-148-1086 P/N ARP568-113MILG23652TY2 · A6689-113-212 · A6689-113-212CP · A6689-113-212CP · +2 more
  10. O-RING NSN 5331-00-148-1065 P/N ARP238-6865 · ARP568-238IDSA6865 · ARP238-6865 · ARP568-238IDSA6865 · +2 more
  11. O-RING NSN 5331-00-146-2670 P/N AS3582-248 · MS9068-248 · 1PS36 · SAE-AS3582 · +2 more
  12. O-RING NSN 5331-00-145-2257 P/N 709193 · 709193 · 709193 · 5-329V747-75 · +2 more
  13. O-RING NSN 5331-00-143-8561 P/N 265-17107A · 265-954-70 · BACP11P265 · 265SR277-70 · +2 more
  14. O-RING NSN 5331-00-143-8402 P/N 200-7068-030 · AS3582-045 · MS9068-045 · 2-045 S604-70 · +2 more
  15. O-RING NSN 5331-00-143-7932 P/N AS3582-118 · MS9068-118 · 499-079-235 · 2-118 S604-70 · +2 more
  16. O-RING NSN 5331-00-140-7665 P/N NAS1594-220 · MIL-R-83248/2-220 · NAS1594-220CP · AS568-220CP · +2 more
  17. O-RING NSN 5331-00-135-5098 P/N AS568-475 · AMS-P-5516 · ARP568-475MILP5516CLASSB · MIL-P-5516CLB · +2 more
  18. O-RING NSN 5331-00-135-0976 P/N AS568-908 · 3-908S455-7 · 3-908S0455-70 · 3-908S455-70 · +2 more
  19. O-RING NSN 5331-00-135-0274 P/N 2008N-9 · 4.5X1.78 20A7 · 45-112-14 · 2574737-1 · +2 more
  20. O-RING NSN 5331-00-133-1968 P/N 16606A23-109 · PRP568-121-209-70 · 2-121N179-7 · 2-121N179-7 · +2 more
  21. O-RING NSN 5331-00-132-6979 P/N MS9386-019 · MS9386-019 · MS9386-019 · SAE AMS7276 · +2 more
  22. O-RING NSN 5331-00-132-6972 P/N 453375 · MS9386-212 · S8990-212 · MS9386-212 · +2 more
  23. O-RING NSN 5331-00-132-6940 P/N ARP568-225MILG23652TY2 · AS3581-225 · 2996473-13 · M1228 · +2 more
  24. O-RING NSN 5331-00-131-2180 P/N 999-275-EP-XHJ- 053 · 5602BPC10 · 999 500 A05602 B10 · 999275EP · +2 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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