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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 5331-01-112-4059 P/N AMS-P-83461/1 · M83461/1-146 · MIL-P-83461/1-146 · M83461/1-146 · +6 more
  2. O-RING NSN 5331-01-107-4957 P/N M83461/1-005 · M83461/1-005 · AMS-P-83461/1 · MIL-P-83461/1 · +6 more
  3. O-RING NSN 5331-01-107-4949 P/N 658-027-910 · 65118-027-910 · 803-4384536-41B1-48 · AMS-P-83461/1 · +6 more
  4. O-RING NSN 5331-01-105-6662 P/N M83461/1-148 · M83461/1-148 · MIL-P-83461/1 · 5331PL0809670 · +6 more
  5. O-RING NSN 5331-01-104-5950 P/N 161-2347 · PRP161-2347 · PRP568-161-3110-70 · AS568-161AMS3209 · +6 more
  6. O-RING NSN 5331-01-104-5943 P/N B7173 ITEM 2 · 123-142-5 · M83248/2-142 · AS3581-142 · +6 more
  7. O-RING NSN 5331-01-101-6077 P/N PL-1054 PART NO. 003120 · 4564120,FG-OX · 003120 · 4564120,FG-OX · +6 more
  8. O-RING NSN 5331-01-093-3504 P/N 2HE966 · AS568B-112 · AMS-P-5510 · AS568-112 · +6 more
  9. O-RING NSN 5331-01-030-2679 P/N 7339987-1 · 3S5271-13PIECE74AND83 · 2-226N674-70 · 2-226 BUNA-N · +6 more
  10. O-RING NSN 5331-01-028-6512 P/N AMS7259 · AS3581-435 · M83248/2-435 · MIL-R-83248/2 · +6 more
  11. O-RING NSN 5331-01-025-9996 P/N MS28775-110 · MS28775-110 · MS28775-110 · SAE-AS28775 · +6 more
  12. O-RING NSN 5331-01-025-7795 P/N S8990-002 · S8990-002 · S8990-002 · S8990-002 · +6 more
  13. O-RING NSN 5331-01-020-2305 P/N 110-8307 · PRP110-8307 · B116-18 · 5331PL1935057 · +6 more
  14. O-RING NSN 5331-01-016-5561 P/N 287-6008P027 · MIL-R-25988/1 · M25988/1-027 · MIL-DTL-25988/1 · +6 more
  15. O-RING NSN 5331-01-016-0627 P/N 67A37A111 · 7264376 ITEM 15 · 1224D0703 FN 15 · 0561B0039-2 · +6 more
  16. O-RING NSN 5331-01-013-5827 P/N AS568B-127 · 4127-53 · P38-433PC62 · 2-127C557-70 · +6 more
  17. O-RING NSN 5331-01-010-5007 P/N 9992016 · AS568-016 · 24304MB · 2-016-C557-70 · +6 more
  18. O-RING NSN 5331-01-010-3368 P/N AS3209-002 · MIL-R-83248/1 · M83248/1-002 · M83248-1-002 · +6 more
  19. O-RING NSN 5331-01-009-7213 P/N 0900-162PC128 · AS568-910E540-80 · ARP568-910E540- 8 · AS568-910E540-8 · +6 more
  20. O-RING NSN 5331-01-009-6732 P/N AS3209-359 · M83248/1-359 · MIL-R-83248/1 · 5331PL1241181 · +6 more
  21. O-RING NSN 5331-01-007-4895 P/N 845-4687581 ITEM 34 · AS3209-447 · M83248/1-447 · MIL-R-83248/1 · +6 more
  22. O-RING NSN 5331-01-007-4889 P/N AS3209-173 · M83248/1-173 · MIL-R-83248/1 · M83248/1-173 · +6 more
  23. O-RING NSN 5331-01-006-3932 P/N 63B0267-375 · AS3209-376 · MIL-R-83248/1 · M83248/1-376 · +6 more
  24. O-RING NSN 5331-01-006-2776 P/N 233-830-70 · 2-233 NA151 · 233-8307 · PRP 233 · +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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