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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 5331-00-608-6432 P/N 927104 · 237-7377 · E101286 PC NO 36 · MS28775-237 · +47 more
  2. O-RING NSN 5331-00-576-9731 P/N 227-7377 · 7377-227 · PRP227-7377 · 1000-013PC5 · +47 more
  3. O-RING NSN 5331-00-542-1398 P/N MS28775-121 · PRP-914-21 · PRP121-7377 · PRP914-21-711-70 · +47 more
  4. O-RING NSN 5331-00-263-8033 P/N 912-7866 · PRP912-7866 · GS570EM912 · 6749216-12 · +47 more
  5. O-RING NSN 5331-00-194-3721 P/N 7G6227-38 · 335-7117 · HN2PC16 · 98H1137-38 · +47 more
  6. O-RING NSN 5331-00-167-5120 P/N M83248/1-132 · 16606A41-120 · 21837 FIND 51 · 21302 FIND 60 · +47 more
  7. O-RING NSN 5331-00-618-0801 P/N 7377-114 · 114-7377 · 114-846-70 · RWS-568-114 · +46 more
  8. O-RING NSN 5331-00-263-8030 P/N MS29512-06 · 7866-6 · 7866-06 · 60-P-31-06 · +46 more
  9. O-RING NSN 5331-00-252-6048 P/N 7866-006 · 60-P-31-006 · R1307P006 · NE10908 · +46 more
  10. O-RING NSN 5331-01-024-2512 P/N D-42060 PC30 · 3188586PC6 · D50-0039 ITEM 38 · M83248/2-920 · +45 more
  11. O-RING NSN 5331-00-579-7925 P/N 16FL0R · PRP219-8307 · 7377-219 · 219-8307 · +45 more
  12. O-RING NSN 5331-00-579-7545 P/N 7377-238 · MS28775-238 · 6002-105PC182 · 6230-16 · +45 more
  13. O-RING NSN 5331-00-542-1329 P/N 7377-120 · MS28775-120 · 5468-16BW PC15 · P48026-120 · +45 more
  14. O-RING NSN 5331-00-291-3076 P/N 7866-239 · GS570EM239 · 20A11CM239 · 300202 · +45 more
  15. O-RING NSN 5331-00-198-6191 P/N 9AF9B2115APC22 · MAF9B2115APC22 · AFC5877A · MAF10B2115APC22 · +45 more
  16. O-RING NSN 5331-00-167-5111 P/N 3799813 FIND 19 · 649-393-122-0 · 18106 · 30159 ITEM 22 · +45 more
  17. O-RING NSN 5331-00-166-8404 P/N AS3209-215 · 215-17107 · GS570AP139C105 · PRP215-19357 · +45 more
  18. O-RING NSN 5331-00-166-1017 P/N AS3209-023 · M83248/1-023 · 2-023 · NF67-100-5 · +45 more
  19. O-RING NSN 5331-00-165-1978 P/N 924-19357 · PRP924-19357 · D-42060PC29 · 516-6818073 ITEM F-1B · +45 more
  20. O-RING NSN 5331-00-263-8011 P/N MS29512-03 · 7866-003 · 6749216-3 · 903-7866 · +44 more
  21. O-RING NSN 5331-00-166-1072 P/N Z1057AM · 10510573 · Z1057AM · 649-393-118-0 · +44 more
  22. O-RING NSN 5331-00-165-1980 P/N 3-905-V0709-90 · 16KP228 · J-970 PIECE 19 · 3422RA PIECE 22 · +44 more
  23. O-RING NSN 5331-00-165-1948 P/N GS570AP139C248 · 501-7055651 ITEM F-28 · 501-7055651 ITEM F-48 · 501-7055651 ITEM F-49 · +44 more
  24. O-RING NSN 5331-01-007-8595 P/N 130-7377 · PRP130-7117 · 130-7117 · PRP130-7377 · +43 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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