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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 5331-01-358-8213 P/N 912135 ITEM 0027 · 190068 · 912135 ITEM 0027 · 77071 · +1 more
  2. O-RING NSN 5331-01-358-8212 P/N 912135 ITEM 0026 · 190178 · 190178 · 129371 · +1 more
  3. O-RING NSN 5331-01-358-8209 P/N 190074 · 912135 PIECE 5 · 912135 PIECE 5 · 190074 · +1 more
  4. O-RING NSN 5331-01-358-8197 P/N 2CP572 · 2124D1315749 ITEM 12 · 1111485 · F1111485 · +1 more
  5. O-RING NSN 5331-01-358-6584 P/N 912135 PIECE 15 · 190201 · 912135 PIECE 15 · 190201 · +1 more
  6. O-RING NSN 5331-01-358-6582 P/N 70143 ITEM 25.2 · 4.893.275 · 3A.208.496 REF-2 · 70143 ITEM 25.2 · +1 more
  7. O-RING NSN 5331-01-358-6575 P/N 9831 · 9831 · 2 0079-562 · 9831 · +1 more
  8. O-RING NSN 5331-01-358-1578 P/N NAS1601-016 · NAS1601 · NAS1611-016 · 2-016E515-80 · +1 more
  9. O-RING NSN 5331-01-356-0070 P/N AS29513-351 · MS29513-351 · SAE-AS29513 · AS29513-351 · +1 more
  10. O-RING NSN 5331-01-355-9911 P/N 2HL770 · 2HL770 · 9P000241 PIECE 2 · 2016N-7 · +1 more
  11. O-RING NSN 5331-01-355-3157 P/N MIL-R-83285GR80/AS568-021 · 20368PC6 · 20368PC25 · AMS-R-83285GR80/AS568-021 · +1 more
  12. O-RING NSN 5331-01-355-3156 P/N AMS-R-83285GR80/AS568-213 · MIL-R-83285GR80/AS568-213 · 20368PC41 · AMS-R-83285GR80/AS568-213 · +1 more
  13. O-RING NSN 5331-01-354-1614 P/N MIL-P-83461/2 · MS28775-909 · M83461-2-909 · MS28775-909 · +1 more
  14. O-RING NSN 5331-01-354-0832 P/N 2001-0052NWND19 IM 14 700MM · 2001-0052NWND19 IM 14 700MM · 2001-0052NWND19 IM 14 700MM · 2001-0052NWND19 IM 14 700MM · +1 more
  15. O-RING NSN 5331-01-352-9338 P/N 3P-0655 · 3P0655 · 3P-0655 · 3P0655 · +1 more
  16. O-RING NSN 5331-01-352-8153 P/N 6V-7702 · 400 5489325 REV ITEM 2 · 6V-7702 · 9Y6921 ITEM 5 · +1 more
  17. O-RING NSN 5331-01-352-1160 P/N 843-7770 · 13229E0117 · 13229E0117 · 120-00365-000 · +1 more
  18. O-RING NSN 5331-01-352-1086 P/N 5P-7815 · 5P-7815 · 5P-7815 · 9Y6536 ITEM 19 · +1 more
  19. O-RING NSN 5331-01-351-8788 P/N M83461/1-026 · MIL-P-83461/1 · M83461/1-026 · SAE-AS83461/1 · +1 more
  20. O-RING SET NSN 5331-01-351-8655 P/N 98870547013 · 6155CME ITEM NUMBER 4 · 6155CME-4 · 98870547013 · +1 more
  21. O-RING NSN 5331-01-351-7612 P/N 700429200002 · 0099978845 · 700429200002 · 0099978845 · +1 more
  22. O-RING NSN 5331-01-351-7608 P/N 331188 · 0331188 · 331188 · 331188 · +1 more
  23. O-RING NSN 5331-01-351-6998 P/N 153-00001-55 ITEM 19 · 099-00200-68 · R6-1070 · 034190A401 ITEM 19 · +1 more
  24. O-RING NSN 5331-01-351-6995 P/N 9Y7405 · 9Y7405 · 00612202 · 9Y6518 ITEM 60 · +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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