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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 5331-01-271-5186 P/N 151-3238 · 5893840-151 · 5893840-151 · 5893840-151 · +1 more
  2. O-RING NSN 5331-01-271-5157 P/N 2D3-982 ITEM 28 · 2-225-P648-90 · 2-225-P648-90 · 2-225-URETHANE-90 · +1 more
  3. O-RING NSN 5331-01-271-0417 P/N 69494J150 · 69494J150 · 69494J150 · 69494J150 · +1 more
  4. O-RING NSN 5331-01-270-7349 P/N 01-438-0004 ITEM 34 · CM1-156-B46A · 156-B46A · 156 · +1 more
  5. O-RING NSN 5331-01-270-7348 P/N 01-438-0004 ITEM 35 · CM1-149-B46A · 01-438-0004 ITE · 01-438-0004-4-3 5 · +1 more
  6. O-RING NSN 5331-01-269-6893 P/N DF240P ITEM 6 · 80X4 BUNA-N · DF160P ITEM 6 · 80X4-NBR-70 · +1 more
  7. O-RING NSN 5331-01-269-6312 P/N 2-113 V709-90 · 2-113V709-90 · A6689.113.366 · 20235 FIND 37 · +1 more
  8. O-RING NSN 5331-01-269-6301 P/N P-000386 · 235116 · 207483 · 24193 · +1 more
  9. O-RING NSN 5331-01-269-6153 P/N 223129 · 412520 ITEM 38 · 413112-2 ITEM 32 · 223129 · +1 more
  10. O-RING NSN 5331-01-269-6152 P/N 2HE3 · 2HE3 · FF9446-25 · 7-755-025002 · +1 more
  11. O-RING NSN 5331-01-269-5153 P/N MS9967-126 · MS9967-126 · AS9967-126 · MS9967-126 · +1 more
  12. O-RING NSN 5331-01-269-4323 P/N 2HL554 · 2HL554 · FF9446-21 · 7-755-021002 · +1 more
  13. O-RING NSN 5331-01-269-3738 P/N 3-902-V709-90 · 3-902V709-90 · 20235 FIND 32 · A6689.902.366 · +1 more
  14. O-RING NSN 5331-01-269-2619 P/N 5500W18P001 · 5500W18P001 · 5500W10P084 · 10159920 · +1 more
  15. O-RING NSN 5331-01-269-0209 P/N MIL-R-25988/3 · M25988/3-276 · MIL-DTL-25988/3 · 2-276L1223-60 · +1 more
  16. O-RING NSN 5331-01-268-6817 P/N 801627-602B PC3 · 404080-B · 801625-551-003 PC NO 17B · 801625-551-003 PC NO 18B · +1 more
  17. O-RING NSN 5331-01-268-5587 P/N NAS1612-10 · 5331PL1866562 · NAS1612-10 · NAS1612-10 · +1 more
  18. O-RING NSN 5331-01-268-3187 P/N 803-4384536-71B-30 · 803-4384536-71B-30 · 803-4384536-13B 30 · 803438453671B30 · +1 more
  19. O-RING NSN 5331-01-267-9307 P/N H07003M · H-7003-M · H07003M · H07003M · +1 more
  20. O-RING NSN 5331-01-267-7529 P/N MS9386-158 · MS9386-158 · S8990-158 · MS9386-158 · +1 more
  21. O-RING NSN 5331-01-267-7525 P/N GD-119 PIECE AA14 · 25W53 · GD-119 PIECE AA14 · 00910660-426 · +1 more
  22. O-RING NSN 5331-01-267-0109 P/N 10383979 · 145617 · 3026421 · 302641 · +1 more
  23. O-RING NSN 5331-01-265-9336 P/N 174076H1 · 174076H1 · 174076H1 · 174076H1 · +1 more
  24. O-RING NSN 5331-01-265-8308 P/N 2HE923 · 2HE923 · AS568-011 · 2-011N507-90 · +1 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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