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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 5331-01-189-8269 P/N RS26110-02236 · 182565 · 1354-154 · MIL-R-25988 · +9 more
  2. O-RING NSN 5331-01-183-0979 P/N 501-6603017PC25 · 9000S6501-74094 · M83461/1-445 · AMS-P-83461/1 · +9 more
  3. O-RING NSN 5331-01-183-0971 P/N 408831046 · M83461/1-236 · AMS-P-83461/1 · M83461/1-236 · +9 more
  4. O-RING NSN 5331-01-174-7868 P/N PRP232-19359 · 232-19359 · PRP568-232-9009-90 · AMS7259 · +9 more
  5. O-RING NSN 5331-01-164-6843 P/N C-7538/2832PC18 · 01-435-0146-5PC96 · 01-435-0212-5PC96 · C-7538/2832PC18 · +9 more
  6. O-RING NSN 5331-01-163-4978 P/N 445-9839 · 21522151-190 · 2879426-801 ITEM 020 · 21522151-190 · +9 more
  7. O-RING NSN 5331-01-163-3688 P/N 200-2948999 PC 31 · 216-4363322 BC-F48 · 845-2110223PC18 · MS28778-4 · +9 more
  8. O-RING NSN 5331-01-160-4326 P/N M83461/1-344 · AMS-P-83461/1 · M83461/1-344 · MIL-P-83461/1 · +9 more
  9. O-RING NSN 5331-01-160-4324 P/N M83461/1-349 · AMS-P-83461 · AMS-P-83461/1 · MIL-P-83461/1 · +9 more
  10. O-RING NSN 5331-01-157-6349 P/N 228-1487 · PRP228-1487 · MS29561-228 · MS29561-228 · +9 more
  11. O-RING NSN 5331-01-147-1265 P/N ST1946-014 · ST1946-014 · ST1946-014 · ST1946-014 · +9 more
  12. O-RING NSN 5331-01-147-1264 P/N ST1946-013 · ST1946-013 · ST1946-013 · ST1946-013 · +9 more
  13. O-RING NSN 5331-01-147-1262 P/N 116-19359 · AS568-116 SAE AMS 3218 · AS568-116 MIL-G-23652 TY 2 · 5331PL1263710 · +9 more
  14. O-RING NSN 5331-01-133-4718 P/N M83461/1-212 · M83461/1-212 · M83461/1-212 · AMS-P-83461/1 · +9 more
  15. O-RING NSN 5331-01-130-3359 P/N 5D3-03870-6 · M83461/1-326 · M83461/1-326 · M83461/1-326 · +9 more
  16. O-RING NSN 5331-01-129-9438 P/N B-6227-32 · 2HG393 · AMS-P-813461/1 · M83461/1-329 · +9 more
  17. O-RING NSN 5331-01-129-2019 P/N 182604 · 1354-146 · MIL-R-25988 · M25988/4-017 · +9 more
  18. O-RING NSN 5331-01-127-7611 P/N NV822203 FIND 31 · CP031A028D3 · NV822201 FIND 88 · NAS1601-028 · +9 more
  19. O-RING NSN 5331-01-118-8627 P/N 16606A54-95 · PRP-568-019-1902-60 · MIL-R-25988/3 · MIL-DTL-25988/3 · +9 more
  20. O-RING NSN 5331-01-116-8112 P/N 2FH964 · FF9446-214 · 2FH964 · ASTM-D2000 GR M3CH910B34EO1 · +9 more
  21. O-RING NSN 5331-01-110-1412 P/N M83461/1-116 · AMS-P-83461/1 · M83461/1-116 · MIL-P-83461/1 · +9 more
  22. O-RING NSN 5331-01-107-4958 P/N D10-080-2190 · D35C2500003 ITEM 66 · D35C2500004 ITEM 66 · M83461/1-118 · +9 more
  23. O-RING NSN 5331-01-107-4955 P/N 1080-1000 · M83461/1-112 · AMS-P-83461 · AMS-P-83461/1 · +9 more
  24. O-RING NSN 5331-01-100-7000 P/N 2-137E515-8 · 2-137E515-80 · 568-137-E1701-80 · PRP568-137-5611-80 · +9 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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