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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 5331-01-132-8224 P/N MIL-DTL-25988/3 · MIL-R-25988/3 · M25988/3-117 · 22593-117 · +2 more
  2. O-RING NSN 5331-01-132-3420 P/N 853-07903-000 · 695-7787 PC24 · 853-7903 · 853-07903-000 · +2 more
  3. O-RING NSN 5331-01-132-1757 P/N 912-11646 · MIL-DTL-25988/3 · M25988/3-912 · MIL-R-25988/3 · +2 more
  4. O-RING NSN 5331-01-132-1551 P/N 12309663-6 · 10414268 · 441.0160.0017 · AS568-247 · +2 more
  5. O-RING NSN 5331-01-132-0270 P/N MIL-R-25988/3 · MIL-DTL-25988/3 · M25988/3-231 · 1450430-231 · +2 more
  6. O-RING NSN 5331-01-130-9073 P/N 2-009 2097-50 · AS568-009 · 755002A7813-1 · N0299 2-009 · +2 more
  7. O-RING NSN 5331-01-130-8191 P/N PRP568-141-1133-60 · M25988/3-141 · MIL-R-25988/3 · MIL-DTL-25988/3 · +2 more
  8. O-RING NSN 5331-01-130-8188 P/N GS570J2J157 · M25988/3-157 · MIL-DTL-25988/3 · MIL-R-25988/3 · +2 more
  9. O-RING NSN 5331-01-130-4290 P/N M25988/1-004 · MIL-DTL-25988/1 · MIL-R-25988/1 · 080-58435-43 · +2 more
  10. O-RING NSN 5331-01-129-8888 P/N 703434-908 · PP1230-12-908 · P2242955 · 703434-908 · +2 more
  11. O-RING NSN 5331-01-129-2018 P/N MIL-DTL-25988/4 · MIL-R-25988/4 · M25988/4-031 · 2-31-L737-65 · +2 more
  12. O-RING NSN 5331-01-129-2004 P/N 2-242L1223-60 · M25988/3-242 · MIL-R-25988/3 · MIL-DTL-25988/3 · +2 more
  13. O-RING NSN 5331-01-128-8976 P/N 100172AM032 · MIL-DTL-25988/1 · M25988/1-032 · MIL-R-25988/1 · +2 more
  14. O-RING NSN 5331-01-128-4447 P/N 024 · 1327-00 · 700-024-355C · 2-024 N304-75 · +2 more
  15. O-RING NSN 5331-01-127-3797 P/N WA533G11049EPSA · 2-348N674-70 · 2-348N674-70 · 71646400 · +2 more
  16. O-RING NSN 5331-01-126-8192 P/N GA 155.007 · GA 155.007 · H-8195 ITEM 5 · H-8195 ITEM 5 · +2 more
  17. O-RING NSN 5331-01-126-1652 P/N GA 155.011 · GA 155.011 · H-8195 ITEM 85 · H-8195 ITEM 85 · +2 more
  18. O-RING NSN 5331-01-126-1381 P/N MS28775-277 · 5331PL0933059 · MS28775-277 · NM304 2-277 · +2 more
  19. O-RING NSN 5331-01-126-1241 P/N ST050-0250F-11CX PIECE 7 · ST506-Z-6-BMIL · AS568A-249 · AS568A-249MIL-G-1149TY2CL5 · +2 more
  20. O-RING NSN 5331-01-125-9038 P/N H568-277 · AS568-277 · N141002310 · N0674-70 2-277 · +2 more
  21. O-RING NSN 5331-01-125-1242 P/N AS568-378 AMS3209 · 2-378C557-70 · C0557 2-378 · 1163479-26 · +2 more
  22. O-RING NSN 5331-01-123-5668 P/N 1298023-13 · 1298023-13 · 7.65X1.63 41B8 · 1298023-13 · +2 more
  23. O-RING NSN 5331-01-123-5667 P/N 1298023-12 · 1298023-12 · 11.89X1.98 41B8 · 1298023-12 · +2 more
  24. O-RING NSN 5331-01-123-5665 P/N 1298023-3 · 1298023-3 · 72.74X1.78 41B8 · 1298023-3 · +2 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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