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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 5331-00-167-5142 P/N 259-17107A · BK-214P220A · 7311 · B-631-12505-37 · +27 more
  2. O-RING NSN 5331-00-166-8390 P/N AS3209-030 · A1005816 · DD-4729 ITEM NO 16 · ST1050-030 · +27 more
  3. O-RING NSN 5331-00-057-2028 P/N 0X58-010-15 · 0XN90-81605 · V3D10075PC41 · N90-81605 · +27 more
  4. O-RING NSN 5331-01-096-8819 P/N 7550478-G7656201-0F232 · 592-7385377 PN F232 · V-2993 PIECE 13 · V-3377 PIECE 13 · +26 more
  5. O-RING NSN 5331-01-019-2607 P/N 7377-248 · 086950 · A49439MZZ · D49440ITEM 28 · +26 more
  6. O-RING NSN 5331-01-005-3702 P/N 298365-100ITEM9 · 298365-200ITEM9 · 6V-3907 · M83248/1-263 · +26 more
  7. O-RING NSN 5331-00-984-3808 P/N 20FL0R · 17254 ITEM 96 · 2BE312 · Y325-222 · +26 more
  8. O-RING NSN 5331-00-800-8718 P/N MS28775-139 · 161979 · MS28775-139 · SAE AS 28775 · +26 more
  9. O-RING NSN 5331-01-075-2184 P/N 7377-253 · DS947032CPIECE2 · MS28775-253 · P48026-253 · +26 more
  10. O-RING NSN 5331-00-599-3072 P/N 7866-258 · GS570EM258 · 60-P-31-258 · 190591 · +26 more
  11. O-RING NSN 5331-00-579-6860 P/N 13337D1PC75 · 1000-013PC20 · 7377-242 · S0310-242R · +26 more
  12. O-RING NSN 5331-00-550-6747 P/N AS3578-904 · 904-7446 · PRP904-7446 · 34666-4 · +26 more
  13. O-RING NSN 5331-00-531-2070 P/N PRP906-4-142-70 · 5R18-4 · S8316H4 · S8316S4 · +26 more
  14. O-RING NSN 5331-00-337-8593 P/N 7866-121 · 60-P-31-121 · PX-1775-121 · 10V60-141-121 · +26 more
  15. O-RING NSN 5331-00-291-3311 P/N 7866-247 · 60-P-31-247 · 1-222258 · 1-222258 · +26 more
  16. O-RING NSN 5331-00-291-3272 P/N AS29513-270 · GS570EM270 · 7866-270 · 60-P-31-270 · +26 more
  17. O-RING NSN 5331-00-291-3268 P/N 7866-248 · GS570EM248 · 60-P-31-248 · PX1775-248 · +26 more
  18. O-RING NSN 5331-00-288-2371 P/N 101A905U01 · 8273 · AMS3215 · AS568-017 · +26 more
  19. O-RING NSN 5331-00-285-9847 P/N 7799-32 · N94-84932 · F-14260-32 · MS28778-32 · +26 more
  20. O-RING NSN 5331-00-265-1086 P/N AS29513-130 · 7866-130 · GS570EM130 · 874453-00 · +26 more
  21. O-RING NSN 5331-00-250-0237 P/N 7866-122 · GS570EM122 · 60-P-31-122 · M125-23 · +26 more
  22. O-RING NSN 5331-00-250-0223 P/N 7866-211 · 8A9028 · PX1775-211 · PX1775-210 · +26 more
  23. O-RING NSN 5331-00-172-7188 P/N 1801490 ITEM NO. 89F · 306797 · 146-19357 · PRP146-19357 · +26 more
  24. O-RING NSN 5331-00-167-5148 P/N M83248/1-266 · 266-19357 · PRP266-19357 · 266-16207 · +26 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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