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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 5331-01-351-2606 P/N OR50X3 LS6231031 · 0-7837/1010/0 FIND 208 · 0-7837/1010/0 FIND 208 · OR50X3 LS623103 1
  2. O-RING NSN 5331-01-351-2604 P/N 16003-27 · 238-6222 · 238-6222 · S6586
  3. O-RING NSN 5331-01-350-7347 P/N AS3578-133 · MS9021-133 · AS3578-133 · SAE-AS3578
  4. O-RING NSN 5331-01-350-5389 P/N 50028832 · 50028832 · 9Y6929 IT 19 · 6V5068
  5. O-RING NSN 5331-01-350-5353 P/N 6V-5062 · 6V-5062 · 6V5062 · 7E2502 ITEM 6
  6. O-RING NSN 5331-01-350-5352 P/N 6V-5052 · 6V-5052 · 9Y6910 ITEM 4 · 6V5052
  7. O-RING NSN 5331-01-350-5351 P/N 6V-5059 · 6V-5059 · 6V-5059 · 9Y6906 ITEM 8
  8. O-RING NSN 5331-01-350-5350 P/N 6V-3550 · 6V-3550 · 6V3550 · 9Y6605 ITEM 5
  9. O-RING NSN 5331-01-350-5348 P/N 14KP369 · 14KP369 · 6V5100 · 9Y6529 ITEM 12
  10. O-RING NSN 5331-01-350-5347 P/N 6V-3968 · 6V-3968 · 9Y6916 ITEM 9 · 6V3968
  11. O-RING NSN 5331-01-350-5345 P/N 5P-8872 · 5P-8872 · 9Y6518 ITEM 21 · 5P8872
  12. O-RING NSN 5331-01-350-5344 P/N 5P-7816 · 5P-7816 · 5P7816 · 5R9252 IT 29
  13. O-RING NSN 5331-01-350-4378 P/N 5-39MIL1-1606-14 · 5-39MIL1-1604-14 · 5-39MIL1-1606-14 · 5-227 ITEM 14 5-39
  14. O-RING NSN 5331-01-350-4371 P/N H71686-8 · US71686 ITEM 8 · H71686-8 · US71686 ITEM 8
  15. O-RING NSN 5331-01-350-3174 P/N MIL-R-83248/1-025 · M83248/1-025CP · M83248/1-025CP · MIL-R-83248/1-025CP
  16. O-RING NSN 5331-01-350-2358 P/N 3A16811 · 76K-012 · S301125 · 76K-012
  17. O-RING NSN 5331-01-350-0462 P/N 238-5212 · 253070 R1 · 238-5212 · 238-5212
  18. O-RING NSN 5331-01-348-4224 P/N 143950PC50 · MS9068-237 · PL-4001387FPC211 · PL-2001387FPC182
  19. O-RING NSN 5331-01-348-2515 P/N 589-B-091-TDA · M-1140-153 PIECE 21 · 589-B-091-TDA · 589-B-091-TDA
  20. O-RING NSN 5331-01-348-2514 P/N M-1140-153 PIECE 20 · 589-B-090-TDA · M-1140-153 PIECE 20 · 589-B-090-TDA
  21. O-RING NSN 5331-01-348-2513 P/N 375-B-219-SU-A · M-1140-153 PIECE 19 · M-1140-153 PIECE 19 · 375-B-219-SU-A
  22. O-RING NSN 5331-01-348-1734 P/N 106722CA · PLC-10678 ITEM 7 · PLC-10678 ITEM 7CP · 106722CACP
  23. O-RING NSN 5331-01-348-1733 P/N PLC-10678 ITEM 17 · 000112XX-B · PLC-10678 ITEM 17CP · 000112XX-BCP
  24. O-RING NSN 5331-01-348-1732 P/N 00109XX-B · PLC-10678 ITEM 21 · PLC-10678 ITEM 21CP · 00109XX-BCP

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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