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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 5331-01-185-2581 P/N 853212 · AMS-P-83461/1 · M83461/1-147 · M83461/1-147 · +5 more
  2. O-RING NSN 5331-01-185-2572 P/N 5M-130 · EHOMM-3130-NF2 ITEM 8 · AMS-P-83461/1 · M83461/1-246 · +5 more
  3. O-RING NSN 5331-01-185-2570 P/N AMS-P-83461/1 · M83461/1-220 · MIL-P-83461/1 · M83461/1-220 · +5 more
  4. O-RING NSN 5331-01-184-5986 P/N AMS7259D · AS3581-002 · MIL-R-83248/2 · M83248/2-002 · +5 more
  5. O-RING NSN 5331-01-184-3906 P/N AMS-P-83461/1 · M83461/1-242 · M83461/1-242 · MIL-P-83461/1 · +5 more
  6. O-RING NSN 5331-01-184-0915 P/N ASTM D2000 · AS568-034 · SAE AS568B-034 · 25010-34 · +5 more
  7. O-RING NSN 5331-01-183-0967 P/N AMS-P-83461/1 · M83461/1-142 · M83461/1-142 · MIL-P-83461/1 · +5 more
  8. O-RING NSN 5331-01-180-5229 P/N AMS 7259 · AS3581-141 · M83248/2-141 · MIL-R-83248/2 · +5 more
  9. O-RING NSN 5331-01-176-4809 P/N 182558 · M25988/4-011 · MIL-R-25988/4 · MIL-DTL-25988/4 · +5 more
  10. O-RING NSN 5331-01-174-0214 P/N 8658792-27 · AMS-P-83461/1 · M83461/1-447 · MIL-P-83461/1 · +5 more
  11. O-RING NSN 5331-01-170-8840 P/N 182635 · MIL-DTL-25988/4 · M25988/4-023 · MIL-R-25988/4 · +5 more
  12. O-RING NSN 5331-01-169-0657 P/N 593-7067139-83 · M83461/1-450 · AMS-P-83461/1 · MIL-P-83461/1 · +5 more
  13. O-RING NSN 5331-01-167-0778 P/N 2152 2115-530 · HE010110 · HS 2152 2115-530 · 010110 · +5 more
  14. O-RING NSN 5331-01-167-0775 P/N 04251658300394 · 010184 · 4536751-001 · HE010184 · +5 more
  15. O-RING NSN 5331-01-163-4973 P/N 451-0980 · 2152 2115-708 · HE010116 · 010116 · +5 more
  16. O-RING NSN 5331-01-160-4349 P/N AMS-P-83461/1 · M83461/1-336 · MIL-P-83461/1 · M83461/1-336 · +5 more
  17. O-RING NSN 5331-01-160-4341 P/N AMS-P-83461/1 · M83461/1-443 · M83461/1-443 · MIL-P-83461/1 · +5 more
  18. O-RING NSN 5331-01-160-4336 P/N MIL-P-83461/1 · M83461/1-437 · M83461/1-437 · MIL-P-83461/1 · +5 more
  19. O-RING NSN 5331-01-160-4333 P/N AMS-P-83461/1 · M83461/1-434 · M83461/1-434 · MIL-P-83461/1 · +5 more
  20. O-RING NSN 5331-01-160-4331 P/N M83461/1-431 · AMS-P-83461/1 · MIL-P-83461/1 · M83461/1-431 · +5 more
  21. O-RING NSN 5331-01-153-0255 P/N S8990-222 · S8990-222 · S8990-222 · S8990-222 · +5 more
  22. O-RING NSN 5331-01-148-8215 P/N AS568A-027MIL-G-22050 · AS568-027 · MIL-G-22050D · MIL-DTL-22050 TY 1 · +5 more
  23. O-RING NSN 5331-01-132-8221 P/N 16606A54-223 · PRP568-151-1133-60 · MIL-DTL-25988/3 · MIL-R-25988/3 · +5 more
  24. O-RING NSN 5331-01-129-7625 P/N 00457-045 F70 · 3930AS1190-15 · LRC63047-15 · ST7M251-15 · +5 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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