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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 5331-00-811-1445 P/N NAS1595-6 · 5330PL0961459 · NAS1595-6ES · NAS1595-6 · +1 more
  2. O-RING NSN 5331-00-811-1334 P/N 909-15AND907-70 · MILG22050 · MIL-DTL-22050 · AN6230-15BUTYL · +1 more
  3. O-RING NSN 5331-00-811-1056 P/N S8057B5 · S8057B5 · 2-010N507-90 · 2-10N507-9 · +1 more
  4. O-RING NSN 5331-00-810-1163 P/N 916-7117 · 3297-16C0MP0UND7474-70 · J201A16 · 000916 · +1 more
  5. O-RING NSN 5331-00-810-0572 P/N 9379-4162 PC16 · 31703 · B18428PC16 · 9379-4153PC16 · +1 more
  6. O-RING NSN 5331-00-810-0187 P/N AN6227-50 · PS1-30-5-50 · AN6227B50 · AN6227B-50 · +1 more
  7. O-RING NSN 5331-00-809-7322 P/N AS3551-115 · MS9241-115 · 10086604 · SAE-AS3551 · +1 more
  8. O-RING NSN 5331-00-808-6387 P/N 1407-38 · 568-019 · 76464-1 · 1407-38 · +1 more
  9. O-RING NSN 5331-00-807-8252 P/N 45-88088 · 50040-109-1001 · 50040-109-1001-T-SEAL · 45-259543 · +1 more
  10. O-RING NSN 5331-00-807-4053 P/N 50388-5 · 50388-3 · 50388-5 · 26596 · +1 more
  11. O-RING NSN 5331-00-803-5955 P/N MS29561-137 · MS29561-137 · 2-137 47-071 · MS29561-137 · +1 more
  12. O-RING NSN 5331-00-803-5898 P/N PRP568-14-4024-65 · AS3578-909 · MS9020-09 · SAE-AS3578 · +1 more
  13. O-RING NSN 5331-00-803-4930 P/N 373342 · 384002 · 373342 · 373342 · +1 more
  14. O-RING NSN 5331-00-803-4923 P/N 384003 · 384003 · 384003 · 384003 · +1 more
  15. O-RING NSN 5331-00-801-3002 P/N MS28775-430 · MILP25732A · MS28775-430 · MS28775-430 · +1 more
  16. O-RING NSN 5331-00-800-8390 P/N 385992 · 385992 · 385992 · 385992 · +1 more
  17. O-RING NSN 5331-00-798-5412 P/N 01X4PC22 · MIL-R-6855 CL1 GR60 · 1955236PC22 · 73614-01X4PC22 · +1 more
  18. O-RING NSN 5331-00-796-2251 P/N 23E7962251 · 7962251 · 7962251 · 5330007962251 · +1 more
  19. O-RING NSN 5331-00-795-6979 P/N 3-16 · 052645700 · 526457 · 95266433 · +1 more
  20. O-RING NSN 5331-00-788-3618 P/N 60020 · 60020 · 610189 B46 · 610189B46A · +1 more
  21. O-RING NSN 5331-00-783-6818 P/N 400-11-9-16IN · ARP568-112MILR2 5987 · ARP568-113MILR2 5987 · ARP568-113MILR2 5897 · +1 more
  22. O-RING NSN 5331-00-782-9394 P/N AS3582-128 · MS9068-128 · MS9068-128 · AS3582-128 · +1 more
  23. O-RING NSN 5331-00-781-7308 P/N 015-7507 · 23111-99-0514 · 015-7507 · 23111-99-0514 · +1 more
  24. O-RING NSN 5331-00-778-2267 P/N 251-17107 · J102960 · STD3000E54 · 20A11EM249 · +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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