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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 5331-01-714-3202 P/N 2507294 · 2507294/ SHEET 2 FIND 29 · 2507294-29 · 2507294-29 · +5 more
  2. O-RING NSN 5331-01-714-2905 P/N 2507294-116 · 2507294 · 2507294/ SHEET 2 FIND 116 · 2507294-116 · +5 more
  3. O-RING NSN 5331-01-714-2218 P/N 2507294/ SHEET 2 FIND 110 · 2507294-110 · 2507294 · 2507294-110 · +5 more
  4. O-RING NSN 5331-01-714-2173 P/N 2507294/ SHEET 2 FIND 04 · 2507294-04 · 2507294 · 2507294-04 · +5 more
  5. O-RING NSN 5331-01-714-1338 P/N 2507294/ SHEET 2 FIND 97 · 2507294 · 2507294-97 · 2507294-97 · +5 more
  6. O-RING NSN 5331-01-699-2274 P/N 515-8543196-F115 · 515-8617512-F129 · 515-8543196 · 515-8617512 · +5 more
  7. O-RING NSN 5331-01-653-8119 P/N 7383858-3423-0001-5 ITEM 18 · AS3208-06 · H547-0001-3423-0001-5 ITEM 18 · H547-0001-3423-0001-5 ITEM 18CP · +5 more
  8. O-RING NSN 5331-01-647-6175 P/N AS3581-117 · 285008-0001 ITEM NO. 65 · 4400591-1170CP · 4400591-1170 · +5 more
  9. O-RING NSN 5331-01-647-5972 P/N AS3581-220 · 440051-2200 · 285008-0001 ITEM NO. 66 · 285008-0001 ITEM NO. 66 CP · +5 more
  10. O-RING NSN 5331-01-604-3937 P/N D50-0020 ITEM 28 · D50-0020 ITEM 28 · D50-0020 · AS568-918 · +5 more
  11. O-RING NSN 5331-01-593-5756 P/N AMS7276 · AMS7276CP · M83248/1-920 · MB-74 FIND NO. 133CP · +5 more
  12. O-RING NSN 5331-01-580-2160 P/N 21-19878 FIND 161CP · 21-19878 FIND 161 · 22-38867 FIND NO 12 · 22-38867 · +5 more
  13. O-RING NSN 5331-01-559-2093 P/N AS3209-240 CP · M83248/1-240 · AC180-240 · V3E10064 ITEM 038 · +5 more
  14. O-RING NSN 5331-01-550-4851 P/N 2852-2001-11 ITEM 12 · 7383858-2852200111A-12 · 7550478-2852200111A-12 · M83248/1-010 · +5 more
  15. O-RING NSN 5331-01-546-4700 P/N 101A923U01CP · 101A923U01CP · 101A923U01 · 10A2235A-1 REV. 3 KEY 4 · +5 more
  16. O-RING NSN 5331-01-545-2313 P/N M83248/1-237CP · M83248/1-237 · MIL-R-83248 · MIL-R-83248/1-23 · +5 more
  17. O-RING NSN 5331-01-532-9187 P/N 2178310/1 · 2178310/1 · 125120 · 2178310/1 · +5 more
  18. O-RING NSN 5331-01-512-8642 P/N M83248/2-234 · M83248/2-234 · AS3209-234CP · M83248/2-234CP · +5 more
  19. O-RING NSN 5331-01-512-7838 P/N 30-1298 · 13976PC9 · 18410-3K REV B FN 86 · 13977PC13 · +5 more
  20. O-RING NSN 5331-01-502-3406 P/N M2065PC55 · M2066PC55 · 70-6029 · 30-2129 · +5 more
  21. O-RING NSN 5331-01-502-3305 P/N M2065PC35 · 70-3040 · M2066PC33 · M2066PC35 · +5 more
  22. O-RING NSN 5331-01-502-3303 P/N M2065PC32 · 70-3048 · M2066PC30 · M2066PC32 · +5 more
  23. O-RING NSN 5331-01-502-3298 P/N M2066PC14 · 30-1542 · 70-3070 · M2065PC14 · +5 more
  24. O-RING NSN 5331-01-502-2947 P/N ST1946-155 · M83485/1-155 · AMS-R-83485/1 · M83485/1-155 · +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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