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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 5331-00-043-3988 P/N 0R325EM · 0R325EM · 45Z463 · X2878 · +2 more
  2. O-RING NSN 5331-00-040-9789 P/N 6F-0711 · N0951 2-223 · 2-223N951-75 · 12610-057 · +2 more
  3. O-RING NSN 5331-00-032-4022 P/N GS570J2J219 · M25988/3-219 · MIL-DTL-25988/3 · 2-219L946-60 · +2 more
  4. O-RING NSN 5331-00-031-0598 P/N AS568-018AMS7277 · 932124-18 · 2-018B612-70 · 2-18 B612-70 · +2 more
  5. O-RING NSN 5331-00-029-9773 P/N AS3582-227 · MS9068-227 · 2-227S604-70 · S0604 2-227 · +2 more
  6. O-RING NSN 5331-00-026-2578 P/N MS9386-227 · AMS7267 · MS9386-227 · SAE-AS9386 · +2 more
  7. O-RING NSN 5331-00-021-2891 P/N 2528918 · AMS-P-5510 · MILP5510 · AMS-P-5510 · +2 more
  8. O-RING NSN 5331-00-008-9022 P/N PRP568-108-4024-65 · AS3578-108 · MS9021-108 · 2-108 N506-65 · +2 more
  9. O-RING NSN 5331-00-008-7873 P/N S8990-606 · S8990-606 · S8990-606 · S8990-606ES · +2 more
  10. O-RING NSN 5331-00-006-2370 P/N L000259 PIECE 31 · 7000067 · 2-242E540-80 · 2-242E540-8 · +2 more
  11. O-RING NSN 5331-00-006-2249 P/N MS28778-8 · MS28778-8 · MS28778-8 · 9469127107 · +2 more
  12. O-RING NSN 5331-00-005-1501 P/N 299C413P4 · 5331PL0162845 · 299C413413P4 · 299C413P4 · +2 more
  13. O-RING NSN 5331-00-005-0668 P/N PRP568-003-4024-65 · AS3578-003 · MS9021-003 · 2-003 N506-65 · +2 more
  14. O-RING NSN 5331-00-004-5338 P/N 2-217N219-70 · ON65222.35.63 · 2-217N674-70 · 9Y6401 · +2 more
  15. O-RING NSN 5331-00-004-5129 P/N 009-8309 · 121-00009-44 · O009-8309 · N0183 2-009 · +2 more
  16. O-RING NSN 5331-00-004-3297 P/N R2-250-00 · G1071PC26 · E300-383-13-26 · G1071PC26 · +2 more
  17. O-RING NSN 5331-00-004-3228 P/N NAS1611-135 · NAS1613 · SP160-123 · 7-57-167 · +2 more
  18. O-RING NSN 5331-00-003-9281 P/N 2-137S604-70 · AS3582-137 · MS9068-137 · 2-137 S604-70 · +2 more
  19. O-RING NSN 5331-00-003-9247 P/N AS568-006 · ABS3209 · 905819-04 · 5331PL1335081 · +2 more
  20. O-RING NSN 5331-00-001-4815 P/N PRP568-364-4024-65 · AS3578-364 · MS9021-364 · 2-364 N506-65 · +2 more
  21. O-RING NSN 5331-01-737-3784 P/N 8598308 ITEM 6 · 8598308 · AS3581-906 · AS3581-906D8 · +1 more
  22. O-RING NSN 5331-01-733-4974 P/N 516-5343916 ITEM F46 · 5343916 · AS35381-234 · AS35381-234CP · +1 more
  23. O-RING NSN 5331-01-733-1774 P/N 8635042-25 · 8635042 · 8635042-25 · 8635042-25 · +1 more
  24. O-RING NSN 5331-01-733-1722 P/N 8635042-27 · 8635042 · 8635042-27 · 8635042-27 · +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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