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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 5331-01-162-4704 P/N AMS-P-83461/1 · M83461/1-458 · MIL-P-83461/1 · M83461/1-458 · +7 more
  2. O-RING NSN 5331-01-160-4343 P/N 4367-70 · AMS-P-83461/1 · M83461/1-325 · M83461/1-325 · +7 more
  3. O-RING NSN 5331-01-160-4342 P/N B86002-337N · M83461/1-337 · AMS-P-83461/1 · M83461/1-337 · +7 more
  4. O-RING NSN 5331-01-160-4339 P/N 585-6404634 FIN · M83461/1-440 · AMS-P-83461/1 · M83461/1-440 · +7 more
  5. O-RING NSN 5331-01-156-3765 P/N NAS1611-326 · NAS1611-326A · NAS1613 · ARP568-326E515-8 · +7 more
  6. O-RING NSN 5331-01-156-3764 P/N 10009119 · 2AW984 · 100390 · G-2840 ITEM 12 · +7 more
  7. O-RING NSN 5331-01-144-9708 P/N MS28775-366 · AS568-366MILP5516CLASSB · 5331PL1263328 · 58081S/AITEM9 · +7 more
  8. O-RING NSN 5331-01-141-1916 P/N 217-8187-70 · 902-22-8187-70 · AMS-P-83461/1 · M83461/1-217 · +7 more
  9. O-RING NSN 5331-01-135-2139 P/N PGF9648-19 · KC9459 · 1706N2 · MS28775-350 · +7 more
  10. O-RING NSN 5331-01-133-4719 P/N M83461/1-235 · AMS-P-83461/1 · MIL-P-83461/1 · M83461/1-235 · +7 more
  11. O-RING NSN 5331-01-133-4327 P/N 16606A36-97 · 16606A54-97 · MIL-R-25988/3 · M25988/3-021 · +7 more
  12. O-RING NSN 5331-01-133-3921 P/N Y49018-265 · SAE AMS7259D · ARP568-265MILG23652TY2 · AS3581-265 · +7 more
  13. O-RING NSN 5331-01-129-3158 P/N GS570J2J342 · M25988/3-342 · MIL-DTL-25988/3 · MIL-R-25988/3 · +7 more
  14. O-RING NSN 5331-01-129-3136 P/N 910-11684 · PRP910-11684 · MIL-R-25988/4 · M25988/4-910 · +7 more
  15. O-RING NSN 5331-01-125-5082 P/N 11307-5218 · C10096-0070-5218 · 1235-70-5218 · S604-70-5-218 · +7 more
  16. O-RING NSN 5331-01-123-3301 P/N 803-1385714-5-33 · M83461/1-136 · AMS-P-83461/1 · M83461/1-136 · +7 more
  17. O-RING NSN 5331-01-121-8091 P/N MS28775-279 · 5516000 ITEM 9 · MS28775-279 · MS28775-279 · +7 more
  18. O-RING NSN 5331-01-119-0953 P/N 016-002450-008 · 16606A54-3 · MIL-R-25988/3 · M25988/3-008 · +7 more
  19. O-RING NSN 5331-01-115-1298 P/N 1298023-23 · 1298023-23 · 2-013E515-80 · H467C001 ITEM 66 · +7 more
  20. O-RING NSN 5331-01-107-4962 P/N AMS-P-83461/1 · M83461/1-004 · MIL-P-83461/1 · M83461/1-004 · +7 more
  21. O-RING NSN 5331-01-107-4952 P/N M83461/1-028 · AMS-P-83461/1 · MIL-P-83461/1 · M83461/1-028 · +7 more
  22. O-RING NSN 5331-01-107-1149 P/N M83461/1-021 · M83461-1-021 · AMS-P-83461/1 · MIL-P-83461/1 · +7 more
  23. O-RING NSN 5331-01-106-9568 P/N PRP158-7377 · PRP158-7117 · 158-737-70 · 158-7117 · +7 more
  24. O-RING NSN 5331-01-106-7290 P/N 219-19359 · AS3581-219 · MIL-R-83248/2 · M83248/2-219 · +7 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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