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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.

Filter

53,078 items

  1. O-RING NSN 5331-01-716-1865 P/N 2507294-34 · 2507294/SHEET 2 FIND 34 · 2507294-34 · 2507294-34 · +4 more
  2. O-RING NSN 5331-01-714-3171 P/N 2507294-106 · 2507294/ SHEET 2 FIND 106 · 2507294 · 2507294-106 · +4 more
  3. O-RING NSN 5331-01-714-2347 P/N 2507294/ SHEET 2 FIND 123 · 2507294 · 2507294-123 · 2507294-123 · +4 more
  4. O-RING NSN 5331-01-699-0182 P/N AS3581-115 · 4400591-1150 · 4400591-1150 CP · 285008-0001 ITEM NO. 69 CP · +4 more
  5. O-RING NSN 5331-01-687-2871 P/N 8598500-03 FN91 · CC71475-16D7 · 8598500-03 FN91D7 · AS3581-902D7 · +4 more
  6. O-RING NSN 5331-01-666-3775 P/N E75500925 · 7422184434 · 7422184434 · 82203026001 · +4 more
  7. O-RING NSN 5331-01-631-9056 P/N M83248/1-218 · 301462CP · 301462E7CP · M83248/1-218CP · +4 more
  8. O-RING NSN 5331-01-631-3099 P/N AS3209-009 CP · 000009EE CP · PLC-13548 ITEM NO. 9 · 000009EEOXYGEN CLEAN CP · +4 more
  9. O-RING NSN 5331-01-630-6048 P/N 22-38812 FIND NO 6 · 29-00725 · 2-113E515-80 · 2-113EM163-80 · +4 more
  10. O-RING NSN 5331-01-623-6976 P/N GS570J5G149 · GS570J2F222 · GS570J2F222 · 5-149-1235-70 · +4 more
  11. O-RING NSN 5331-01-622-9884 P/N 2502774-38 · 2-237 E0540-80 1W2B · 2502774-38 · 2-237 E0540-80 1W2B · +4 more
  12. O-RING NSN 5331-01-619-6295 P/N 7383858-B737 ITEM 18 · B737 ITEM 18 · 00908-75-00-01 · H547-0001-B737 ITEM 18 · +4 more
  13. O-RING NSN 5331-01-619-0246 P/N 58-113-27 · AS3209-113 · AMS7276 · 4400571-1130 · +4 more
  14. O-RING NSN 5331-01-616-4259 P/N AS3581-009 OXYGEN CLEAN · M1156-1196 PC NO 13 CP · AS3581-009 OXYGEN CLEAN CP · M1156-1196 PC NO 13 · +4 more
  15. O-RING NSN 5331-01-610-6033 P/N R516647 · R516647 · R516647 · 330362995 · +4 more
  16. O-RING NSN 5331-01-605-3405 P/N MS29512-2 · AS29512 · MS29512-2 · MS29512-2 · +4 more
  17. O-RING NSN 5331-01-600-2432 P/N CS 3385 · CS 3385 · 6441750-04M1 · 6441750 · +4 more
  18. O-RING NSN 5331-01-593-5836 P/N AMS7259 · 5200-020179CP · AMS7259CP · M83248/2-017CP · +4 more
  19. O-RING NSN 5331-01-593-4794 P/N AMS72590 · M83248/2-906 · MB-74 FIND NO. 015CP · 5200-029069CP · +4 more
  20. O-RING NSN 5331-01-584-2438 P/N XM123-906-5 OXYGEN CLEAN · 123-906-5 OXYGEN CLEAN · B8744 ITEM 3 · C3074 REV H ITEM 4 · +4 more
  21. O-RING SET NSN 5331-01-576-5724 P/N 4074270 · LN K185104623S · 4074270 · K185104623S · +4 more
  22. O-RING NSN 5331-01-563-7521 P/N SH-5529 80/50-0900 POS 45 · 900011 · 2-306539 POS 45 · SH-5529 80/50-0900 POS 45 · +4 more
  23. O-RING NSN 5331-01-563-7518 P/N 2-306539 POS 44 · 900088 · SH-5529 80/50-0900 POS 44 · SH-5529 80/50-0900 POS 44 · +4 more
  24. O-RING,AIRCRAFT,MAT NSN 5331-01-563-0731 P/N 269A6032 · 269A6032 · 269A6032-003 · 269A6032-003 · +4 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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