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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 5331-00-711-4612 P/N BM6235A · 004243 · 109320 · BM6235A · +1 more
  2. O-RING NSN 5331-00-710-4369 P/N AS3551-022 · MS9241-022 · 25.12X1.78 23 B7 · SAE-AS3551 · +1 more
  3. O-RING NSN 5331-00-710-4367 P/N AS3551-013 · MS9241-013 · 0740863 · SAE-AS3551 · +1 more
  4. O-RING NSN 5331-00-710-2698 P/N 25K30012 · 25K30012 · 746 · 25K-30012 · +1 more
  5. O-RING NSN 5331-00-702-7720 P/N AS3582-163 · MS9068-163 · 2-163 S604-70 · AS3582-163 · +1 more
  6. O-RING NSN 5331-00-702-2737 P/N 907-70-902-82 · WW309-32 · WW309-32 · MILG22050 · +1 more
  7. O-RING NSN 5331-00-702-2736 P/N 907-70-902-40 · WW309-53 · WW309-53 · MILG22050 · +1 more
  8. O-RING NSN 5331-00-691-6345 P/N 159-1487 · 100-237-2 · 100-237-2 · NM702 A7362-159 · +1 more
  9. O-RING NSN 5331-00-689-6474 P/N 500572-6 · 22-38625 PC 13 · 2-035E515-80 · 22-38625 PC 13CP · +1 more
  10. O-RING NSN 5331-00-686-1311 P/N AS3551-124 · MS9241-124 · MS9241-124ES · SAE-AS3551 · +1 more
  11. O-RING NSN 5331-00-683-9887 P/N 914-10-711-70 · 287MR003P015 · 22502-22 · 22502-22 · +1 more
  12. O-RING NSN 5331-00-663-7686 P/N 186B20REVAPC4 · 186DAPC16 · 565-2100-983036ALT8ITEM92 · 576-2200-1506656REVAPC4 · +1 more
  13. O-RING NSN 5331-00-663-6893 P/N 813752 · E20274 · E20274 · 10434271 · +1 more
  14. O-RING NSN 5331-00-652-0782 P/N 1014900B010-47 · 1007581-5A · 1014900B010-47 · 100111AB5 · +1 more
  15. O-RING NSN 5331-00-649-1741 P/N J221P011 · 649-670-182-0 · 10119520 · 705B504P2 · +1 more
  16. O-RING NSN 5331-00-641-1245 P/N 120726C · 120726A · 120726D · 1161 · +1 more
  17. O-RING NSN 5331-00-640-9158 P/N PD5330-217-51 · A180-159 · ARP568-159MILP5 516-70DURM · P49708-0159 · +1 more
  18. O-RING NSN 5331-00-634-9399 P/N 4379178 · G44177 · 4379178-9 · 4379178 · +1 more
  19. O-RING NSN 5331-00-633-6818 P/N 71038 · Z053071038 · 71038 · 10505782 · +1 more
  20. O-RING NSN 5331-00-633-1278 P/N 3P40 · 40-4X137 · 2180D3076 · 1820-25 · +1 more
  21. O-RING NSN 5331-00-632-1723 P/N MIL-DTL-25988/3 · M25988/3-130 · MIL-R-25988/3 · 10163317 · +1 more
  22. O-RING NSN 5331-00-630-4215 P/N 952-0704-41 · 5-704 · 130981-34N · 5-704N674-70 · +1 more
  23. O-RING NSN 5331-00-625-8887 P/N 2-113PSI-30-5 · 2-113N304-75 · 2-113PS1-30-5 · MS28775-113 · +1 more
  24. O-RING NSN 5331-00-624-4022 P/N B1000-232 · 1081A99H28 · 24-4009B110 · 232-2561 · +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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