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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 5331-01-289-7845 P/N A-XA0484-1 · AMS3227 · AS568 · MIL-STD-413 · +3 more
  2. O-RING NSN 5331-01-285-8825 P/N GS570J2J143 · M25988/3-143 · MIL-R-25988/3 · MIL-DTL-25988/3 · +3 more
  3. O-RING NSN 5331-01-285-0669 P/N MS28775-337 · PL-11761-F-18ITEM456E · 5330PL0799366 · MS28775-337 · +3 more
  4. O-RING NSN 5331-01-283-3286 P/N SAE-AS3581-217 · MIL-R-83248/2-217 · M83248/2-217CP · 2-217V709-90 · +3 more
  5. O-RING NSN 5331-01-281-8998 P/N J903846 · J906695 · 3906694 · J906695 · +3 more
  6. O-RING NSN 5331-01-281-8997 P/N 5331PL0826100 · 3910824 · CBU1407 · J901837 · +3 more
  7. O-RING NSN 5331-01-279-3360 P/N 117-19457 · AS3085-117 · 0117-19457 · 2-117 V747-75 · +3 more
  8. O-RING NSN 5331-01-279-1166 P/N 0T65255.70.63 · 0N65255.70.63 · 029622-024 · 00652547063 · +3 more
  9. O-RING NSN 5331-01-278-7637 P/N 324489R3 · 324489R3 · 2005914 · 2-05914 · +3 more
  10. O-RING NSN 5331-01-278-1754 P/N AM11476 SYM 4 · 304305 · B304305 · YC304305 · +3 more
  11. O-RING NSN 5331-01-278-0490 P/N AS3085-122 · 5331PL1147612 · AS3085-122 · 2-122 V747-75 · +3 more
  12. O-RING NSN 5331-01-278-0096 P/N 845-2445100PC4(1.250IN) · 845-2445100PC4,1.250INCH · MIL-R-83461/1-134 · MS28775-134 · +3 more
  13. O-RING NSN 5331-01-277-6598 P/N AS3085-152 · 020152V0747 · 2-152 V747-75 · 2-152-V747-75 · +3 more
  14. O-RING NSN 5331-01-277-6592 P/N AS3085-127 · 2-127 V747-75 · 5331012776592 · MAF0000001005 · +3 more
  15. O-RING NSN 5331-01-277-6590 P/N AS3085-21 · 6823354-21 · AS3085-021 · 2-021 V747-75 · +3 more
  16. O-RING NSN 5331-01-277-0368 P/N 147-3238 · 5893840-147 · 5893840 · NAS1611-147 · +3 more
  17. O-RING NSN 5331-01-274-8370 P/N 0561C0031-9 · 845-6800704-030 · 378-B46A · AS568-378 · +3 more
  18. O-RING NSN 5331-01-272-9300 P/N NAS1602-908 · NAS1612-8CP · NAS1612-8 · 140BB29 PC 71 · +3 more
  19. O-RING NSN 5331-01-271-5958 P/N 5893886-012 · 5893886 · 5893886-012 · 2-025 E540-80 1W2B · +3 more
  20. O-RING NSN 5331-01-270-6188 P/N AMS 7276 · MIL-R-83248 TY1 CL1 · S1E10036 REV E ITEM 40 · M83248/1-120CP · +3 more
  21. O-RING NSN 5331-01-269-8579 P/N P-000380 · 6KP486 · 235110 · 6KP486 · +3 more
  22. O-RING NSN 5331-01-269-6079 P/N 2CD540 · 9844 · 2CD540 · DP9844 · +3 more
  23. O-RING NSN 5331-01-268-0159 P/N 324571 · 1096230160 · 1096230160 · 1096230160 · +3 more
  24. O-RING NSN 5331-01-264-5925 P/N SS800-244 · SS800-244 · SS800-244 · SS800-244 · +3 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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