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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 5331-01-045-3715 P/N AS568-026MILG23652TYPE2 · 5331PL1246609 · 10506 ITEM 17 · AS-568-026MILG2 3652 TY2 · +5 more
  2. O-RING NSN 5331-01-043-4343 P/N 200-724-12 · 400-221-41 · AS568-204 · ABS3209L · +5 more
  3. O-RING NSN 5331-01-041-2008 P/N 6V-5065 · 26KP532 · 26KP532 · 3-920E540-80 · +5 more
  4. O-RING NSN 5331-01-039-7582 P/N 3-08N168-8 · 1014900B908-22 · 5331PL1322209 · STSPK300-08 · +5 more
  5. O-RING NSN 5331-01-037-0799 P/N AS568-924 · D2000 M2BG715B14E34F17 · 3-924-2BG715B14 E14E34F17 · 3-924 · +5 more
  6. O-RING NSN 5331-01-036-7699 P/N 3853PC18 · 3763-6 · AS568-112MIL-P-24074TYPE1GRADEA · AS568-112AMS3656ETYPE1GRADEA · +5 more
  7. O-RING NSN 5331-01-035-3367 P/N 3-904N219-7 · 04-1-904 · AS568-904 · MIL-G-21569B CL 1 · +5 more
  8. O-RING NSN 5331-01-031-8244 P/N 2507294-45 · 2507294-45 · 389-7507 · 2507294-45 · +5 more
  9. O-RING NSN 5331-01-031-8238 P/N 2507294-27 · 2-044N674-70 · 2507294-27 · 2507294-27 · +5 more
  10. O-RING NSN 5331-01-031-8219 P/N 2507294-66 · 2507294-66 · 3-912N674-70 · 2507294-66 · +5 more
  11. O-RING NSN 5331-01-031-8217 P/N 2507294-8 · 2507294-8 · 0401-015-000 · 2507294-8 · +5 more
  12. O-RING NSN 5331-01-031-1340 P/N 2507294-63 · 2507294-63 · 2-276N674-70 · 2507294-63 · +5 more
  13. O-RING NSN 5331-01-031-1338 P/N 2507294-83 · 910-C-69 · 2507294-83 · 2507294-83 · +5 more
  14. O-RING NSN 5331-01-031-1337 P/N 2507294-2 · 028-10156-000 · 2507294-2 · 028-10156 · +5 more
  15. O-RING NSN 5331-01-031-0789 P/N PRP568-338-1902-60 · B67112-338 · M25988/3-338 · MIL-DTL-25988/3 · +5 more
  16. O-RING NSN 5331-00-759-2012 P/N MILR25988 · M25988/1-149 · MIL-DTL-25988/1 · 5331PL2215525 · +5 more
  17. O-RING NSN 5331-00-753-2032 P/N 013-9357 · 2013V-7 · MILG22050 · MIL-DTL-22050 · +5 more
  18. O-RING NSN 5331-00-752-8992 P/N 133251 · 156538R1 · 156538R1 · 25K20016 · +5 more
  19. O-RING NSN 5331-00-741-2096 P/N 7412096 · 2194445 · 2194445 · 2194445 · +5 more
  20. O-RING NSN 5331-00-736-0288 P/N 8351278 · HR166-282 · 2930-70 · A512-7 · +5 more
  21. O-RING NSN 5331-00-729-4952 P/N X1456T9 · 19A11C14 · 1456T9 · 19A11C14 · +5 more
  22. O-RING NSN 5331-00-726-9307 P/N AS29561-260 · MS29561-260 · 5331PL1185362 · MS29561-260 · +5 more
  23. O-RING NSN 5331-00-725-4027 P/N MS29561-025 · 5331PL0657668 · MS29561-025 · STD3019C25 · +5 more
  24. O-RING NSN 5331-00-725-0763 P/N AS29561-018 · 130A0698 · MS29561-018 · MS29561-018 · +5 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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