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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 5331-00-133-3646 P/N 45818 · 85912 · 2-016E540-80 · 8256-24 · +7 more
  2. O-RING NSN 5331-00-127-7204 P/N 45819 · 87401 · 021E540-8 · HJE03287 · +7 more
  3. O-RING NSN 5331-00-127-7199 P/N AS568-902 · D2000-04 · C004-2 · MS3393-2 · +7 more
  4. O-RING NSN 5331-00-115-1361 P/N 5331PL1338745 · A 6689.021.142 · A06689.021.142 · ARP568-021MILP1 9468 · +7 more
  5. O-RING NSN 5331-00-104-7624 P/N 222-8307 · PRP222-830-70 · 23176-208610-03-0 · PRP222 · +7 more
  6. O-RING NSN 5331-00-086-2460 P/N NV822201 FIND 29 · CP031A916D3 · NAS1612-16A · NAS1613 · +7 more
  7. O-RING NSN 5331-00-079-4578 P/N 182370 · 8407630 · AS3582-006 · 90300-2 · +7 more
  8. O-RING NSN 5331-00-072-3665 P/N AS568-241ZZR765CLASS2BGRADE70 · AS3582-241 · 54-66-2241 · 2632-0932 ITEM 3-6 · +7 more
  9. O-RING NSN 5331-00-054-6887 P/N 07-635273 · ARP568-252 · AN6230-29 · MILP5516 · +7 more
  10. O-RING NSN 5331-00-052-6805 P/N 39823172 · 523106 · ASTM D2000 M3CH714A25B34E016 · AS568-231 · +7 more
  11. O-RING NSN 5331-00-052-5267 P/N AS3582-030 · MS9068-030 · 10163199 · 5330000525267 · +7 more
  12. O-RING NSN 5331-00-052-0537 P/N TR-RG30 · TR-RG30 · AMS3304 · AS568-902AMS3304 · +7 more
  13. O-RING NSN 5331-00-050-1685 P/N S8990-558 · S8990-558 · S8990-558 · S8990-558 · +7 more
  14. O-RING NSN 5331-00-046-4603 P/N 911R358 PIECE 15 · SSBN640-501-2118970PC9 · 911R358 PIECE 15 · 561A466 · +7 more
  15. O-RING NSN 5331-00-031-2916 P/N S8990-013 · S8990-013 · S8990-13 · S8990-013 · +7 more
  16. O-RING NSN 5331-00-021-3625 P/N 890-010 · PRP568-155-7 · AS3582-155 · 418048-155 · +7 more
  17. O-RING NSN 5331-00-019-9481 P/N AS3582-143 · 9548B · 9548B · MS9068-143 · +7 more
  18. O-RING NSN 5331-00-004-3227 P/N DF330645 FIND 9 · 211071633 · AS568-115 · AS568-115MIL-G-22050 GR 1 · +7 more
  19. O-RING NSN 5331-01-361-4786 P/N AS3209-273 · M83248/1-273 · AS43013-273 · AS3209-273 · +6 more
  20. O-RING NSN 5331-01-360-1902 P/N AMS-P-83461 · M83461/1-106 · M83461/1-106 · MIL-P-83461 · +6 more
  21. O-RING NSN 5331-01-341-3672 P/N AMS-P-83461 · M83461/1-109 · M83461/1-109 · MIL-P-83461 · +6 more
  22. O-RING NSN 5331-01-326-4328 P/N AMS7259 · AS3581-426 · MIL-R-83248 · M83248/2-426 · +6 more
  23. O-RING NSN 5331-01-325-5240 P/N MS28775-144 · 5331PL0809667 · MS28775-144 · MS28775-144 · +6 more
  24. O-RING NSN 5331-01-324-1455 P/N US-71407 ITEM 35 · 47356 · AM-1160 · H72346-8-1 · +6 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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