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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 5331-01-082-9382 P/N 319085 · 319085 · 319085 · 319085 · +2 more
  2. O-RING NSN 5331-01-082-9381 P/N 308627 · 308627 · 308627 · 308627 · +2 more
  3. O-RING NSN 5331-01-081-7401 P/N 2502774-31 · 2502774-31 · 2502774-31 · 2502774 · +2 more
  4. O-RING NSN 5331-01-081-1290 P/N AS568-265 · AS568-265AMS3303 · 200136ACPC373 · 200136ACPC373 · +2 more
  5. O-RING NSN 5331-01-080-9067 P/N RR1181 · RR1181S · RR1181 · RR1181 · +2 more
  6. O-RING NSN 5331-01-079-7305 P/N M25988/2-013 · MIL-R-25988/2 · MIL-DTL-25988/2 · MILR25988-2-013ES · +2 more
  7. O-RING NSN 5331-01-078-8854 P/N 30674 · AS568-224 · MIL-R-27777B · 2-259 · +2 more
  8. O-RING NSN 5331-01-078-4502 P/N A48607MZZ · D49273 ITEM 27 · 2-246N304-75 · NM304 2-246 · +2 more
  9. O-RING NSN 5331-01-077-3150 P/N 99-4781-138 · 99-4781-138 · 99-4781-138 · 99-4781-138 · +2 more
  10. O-RING NSN 5331-01-077-3147 P/N NAS 1611-007 · NAS1611-007A · NAS1611-007 · NAS1613 · +2 more
  11. O-RING NSN 5331-01-076-6167 P/N 876106C1 · ESP-S-1.131-PP · 876106C1 · 876106C1 · +2 more
  12. O-RING NSN 5331-01-073-4234 P/N 6879100-266 · SR2710-70 · V730-70 · V0730 2-266 · +2 more
  13. O-RING NSN 5331-01-073-3689 P/N 364-48662-000 REV B ITEM 152 · 028-12946 · AS568B-272 · 2-272C873-70 · +2 more
  14. O-RING NSN 5331-01-072-9193 P/N MS28775-339 · 6227-42 · MS28775-339 · MS28775-339ES · +2 more
  15. O-RING NSN 5331-01-071-9549 P/N 2-042 · 2-042 · 2-042 C944-70 · 182741129 · +2 more
  16. O-RING NSN 5331-01-071-6500 P/N MS9386-230 · 5331PL0658328 · MS9386-230 · MS9386-230ES · +2 more
  17. O-RING NSN 5331-01-071-6499 P/N MS9386-117 · 5331PL0658327 · MS9386-117 · MS9386-117ES · +2 more
  18. O-RING NSN 5331-01-071-4629 P/N A356A133-101 · 12011704-5 · 12011704-5 · 90600366 · +2 more
  19. O-RING NSN 5331-01-070-4835 P/N PRP568-010-4200-70 · AS568010 · AMS7270K · AS568-010AMS727 0F · +2 more
  20. O-RING NSN 5331-01-070-2117 P/N 52-35444-00 · S84777 · 18A313 · A16425 · +2 more
  21. O-RING NSN 5331-01-070-1735 P/N 1298023-16 · 1298023-16 · 1298023-16 · 1298023-16 · +2 more
  22. O-RING NSN 5331-01-069-3165 P/N 1298023-29 · 1298023-29 · NAS1611-219 · 1298023-29 · +2 more
  23. O-RING NSN 5331-01-069-2702 P/N 1802769 · MIL-STD-129 · MIL-P-25732 · 1940A0107 · +2 more
  24. O-RING NSN 5331-01-068-7331 P/N CC29058-23 · 149241 · CC29058-23 · 46296R384PC23 · +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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