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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 5331-00-451-9005 P/N N80853 · M00-50186-G1ITEM21 · AS568B-236 · MS21569 CLASS 1 · +10 more
  2. O-RING NSN 5331-00-448-9811 P/N 2-010C557-7 · 5550252 ITEM 15 · S8057BG5 · 9868P10 · +10 more
  3. O-RING NSN 5331-00-440-4948 P/N AS3582-238 · 923586 · 418048-238 · MS9068-238 · +10 more
  4. O-RING NSN 5331-00-406-0836 P/N PRP153-11737 · 153-11737 · 580634 · 580634 · +10 more
  5. O-RING NSN 5331-00-405-6024 P/N AS568-026 MIL-G-21569 CLASS 1 · AS568-026 3CH720A25B14E16E36 · 2-026N674-70 · 2-026 N674-70 · +10 more
  6. O-RING NSN 5331-00-322-0137 P/N 00179-025F70 · LRC63047-6 · 425005-6 · B56106-6 · +10 more
  7. O-RING NSN 5331-00-298-5828 P/N 1354-029 · 03040-105 · 1355-053 · 03031-73 · +10 more
  8. O-RING NSN 5331-00-298-0255 P/N PX1775-457 · SK106-1629 · PRP568-458-60 · AS29513-457 · +10 more
  9. O-RING NSN 5331-00-291-9224 P/N YKA5877A · 800596PC614 · 801103PC614 · MCJB3APC20 · +10 more
  10. O-RING NSN 5331-00-285-9871 P/N HN32 106 · HN39 42 · HN33 106 · HN42PC42 · +10 more
  11. O-RING NSN 5331-00-255-5225 P/N 024-3238 · PRP024-3238 · AS568-024 2AA815A13F17EA14 · AS568-024 · +10 more
  12. O-RING NSN 5331-00-254-9941 P/N 10-1179PC12 · 10-1356PC32 · 10-1165PC4 · 10-1358PC1 · +10 more
  13. O-RING NSN 5331-00-253-4973 P/N S9413-010 · S9413-010 · S9413-010 · S9413-010 · +10 more
  14. O-RING NSN 5331-00-222-1680 P/N AS9385-04 · MS9385-04 · MS9385-04 · 5331PL0190004 · +10 more
  15. O-RING NSN 5331-00-221-6127 P/N PRP030-11737 · 030-11737 · S8990-030 · 458028 · +10 more
  16. O-RING NSN 5331-00-220-2518 P/N AS9386-015 · MS9386-015 · S8990-015 · MS9386-015 · +10 more
  17. O-RING NSN 5331-00-198-6169 P/N 11634674 · 3213056 · H3527B · H3527A · +10 more
  18. O-RING NSN 5331-00-185-0366 P/N PRP904-11506 · 904-11506 · 3-4S613-6 · X25C85 · +10 more
  19. O-RING NSN 5331-00-179-9369 P/N M25988/2-010 · M5988/2-01085 · M5988/2-0410 · MS5988/2-10 · +10 more
  20. O-RING NSN 5331-00-173-3022 P/N AS3209-168 · AMS7276 · AS3209-168 · MILR83248 · +10 more
  21. O-RING NSN 5331-00-172-7223 P/N 1PS40 · 13-0617-44 · 1PS40 · AS568-238 · +10 more
  22. O-RING NSN 5331-00-172-6347 P/N 7866-169 · PX1775-10 · 10V60-141-169 · PRP568-169-457-60 · +10 more
  23. O-RING NSN 5331-00-167-5162 P/N 845-7108907 ITEM 24 · 563-7067896-67 · AS3209-439 · AMS7276 · +10 more
  24. O-RING NSN 5331-00-167-5154 P/N 210306 · AMS7276G · AS3209-279 · MILR83248 · +10 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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