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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 5331-01-072-9191 P/N MS28775-226 · MS28775-226 · MS28775-226 · N306-75-2-226 · +1 more
  2. O-RING NSN 5331-01-072-8979 P/N 82570-7 · 1355-145 · 182799 · 5331PL0940567 · +1 more
  3. O-RING NSN 5331-01-072-1666 P/N 877447-00 · 957C048140-2 · 2-121 E529-60 · 12266940-2 · +1 more
  4. O-RING NSN 5331-01-071-3409 P/N 15587 · S107967 · 962265 · S107967 · +1 more
  5. O-RING NSN 5331-01-071-3408 P/N 351.08307 · 2-351NA151 · 351-7507 · 25K-60424 · +1 more
  6. O-RING NSN 5331-01-071-0090 P/N NAS1601-126 · NAS1601 · NAS1613 · NAS1611-126A · +1 more
  7. O-RING NSN 5331-01-069-8237 P/N MS28775-202 · 5331PL2228163 · MS28775-202 · SAE-AS28775 · +1 more
  8. O-RING NSN 5331-01-067-8567 P/N 10510419 · 745-292437 · 240450 · S87983 · +1 more
  9. O-RING NSN 5331-01-067-7058 P/N MS9771-06 · 5331PL1249093 · MS9771-06 · SAE-AS9771 · +1 more
  10. O-RING NSN 5331-01-067-5100 P/N 711812 · 711812 · 711812 · D303263PC36 · +1 more
  11. O-RING NSN 5331-01-066-2486 P/N 50343 · 22666 · 50343 · 50343 · +1 more
  12. O-RING NSN 5331-01-065-6376 P/N MIL-STD-129 · 50346 · 08302 · 50346 · +1 more
  13. O-RING NSN 5331-01-065-2651 P/N AS3209-037 · MILR83248 · ST3001-037 · SAE-AMS7276 · +1 more
  14. O-RING NSN 5331-01-064-8807 P/N 32Z8448 · 32-A-8448R2 · 032-08448-000 · 32A8448R2 · +1 more
  15. O-RING NSN 5331-01-063-3800 P/N AS568B · MIL-PRF-1149D · AS568-905MILG11 49TYICL5 · 3-905N299-50 · +1 more
  16. O-RING NSN 5331-01-062-1986 P/N 6877242-008 · 6877242-008 · 6841702 · 6877242-008 · +1 more
  17. O-RING NSN 5331-01-060-4416 P/N 6877242-007 · 6877242-007 · AMS7276G · 5331PL0816555 · +1 more
  18. O-RING NSN 5331-01-058-7109 P/N AS568-035MILG21569CL1 · AS568-035 · MIL-G-21569CL1 · 2-035MILG21569 · +1 more
  19. O-RING NSN 5331-01-058-5412 P/N AS3582-436 · MS9068-436 · 2-436S604-70 · SAE-AS3582 · +1 more
  20. O-RING NSN 5331-01-058-4562 P/N 31525003 · 31525-3 · 31525-003 · STD2-010 · +1 more
  21. O-RING NSN 5331-01-058-4010 P/N MIL-DTL-25988/1 · MIL-R-25988/1 · M25988/1-442 · 5331PL0658324 · +1 more
  22. O-RING NSN 5331-01-058-4005 P/N AS29513-117 · MS29513-117 · MS29513-117 · SAE-AS29513 · +1 more
  23. O-RING NSN 5331-01-056-8498 P/N 2-427N552-90 · 2-427N522-90 · 2-427N552-90 · N0552 2-427 · +1 more
  24. O-RING NSN 5331-01-054-8923 P/N NAS1595-20 · MIL-R-83248/1-20CP · NAS1595-20CP · PL2850-0001 FIND 22CP · +1 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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