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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 5331-01-007-7087 P/N 4133-53 · P38-433-3PC39 · 4133-73 · 2-133C557-7 · +3 more
  2. O-RING NSN 5331-01-007-7085 P/N 5010-53 · P38-433-3PC57 · 6227-10C557-7 · 2-112C557-7 · +3 more
  3. O-RING NSN 5331-01-007-4893 P/N AS3209-441 · M83248/1-441 · MIL-R-83248/1 · MS9388-441 · +3 more
  4. O-RING NSN 5331-01-007-4892 P/N AS3209-440 · M83248/1-440 · MIL-R-83248/1 · 54-67-2440 · +3 more
  5. O-RING NSN 5331-01-007-1621 P/N 287-6008P038 · M25988/1-038 · MIL-R-25988/1 · MIL-DTL-25988/1 · +3 more
  6. O-RING NSN 5331-01-007-1600 P/N MIL-R-25988/1 · M25988/1-134 · MIL-DTL-25988/1 · 5331PL0658289 · +3 more
  7. O-RING NSN 5331-01-006-9043 P/N 151758-18 · 151758-18 · 151758-18 · 1531758-18 · +3 more
  8. O-RING NSN 5331-01-006-5478 P/N SM-C-773504-8 · 1JA3368H71 · 2-013 E515-80 · E 0515 2-013 · +3 more
  9. O-RING NSN 5331-01-006-2131 P/N D2000 · AS568-475 · N190475E000 · H20089G001PC9 · +3 more
  10. O-RING NSN 5331-01-006-2117 P/N AS3209-474 · MIL-R-83248C TYPE 1 CLASS 1 · MIL-R-83248/1 · M83248/1-474 · +3 more
  11. O-RING NSN 5331-01-006-2112 P/N AS3209-469 · M83248/1-469 · MIL-R-83248/1 · MIL-R-83248C TYPE 1 CLASS 1 · +3 more
  12. O-RING NSN 5331-01-006-0320 P/N AS3209-461 · MIL-R-83248/1 · MIL-R-83248C TY 1 CL 1 · M83248/1-461 · +3 more
  13. O-RING NSN 5331-01-005-8367 P/N ARP568-218T · ARP568-218AMS3651 · 5331PL1240726 · 2-218 · +3 more
  14. O-RING NSN 5331-01-005-4408 P/N AS3209-444 · MIL-R-83248/1 · M83248/1-444 · MIL-R-83248C TYPE 1 CLASS 1 · +3 more
  15. O-RING NSN 5331-01-005-2314 P/N AS3209-457 · M83248/1-457 · MIL-R-83248/1 · AS568-457 · +3 more
  16. O-RING NSN 5331-01-005-0533 P/N AMS7276 · AS3209-386 · MIL-R-83248/1 · M83248/1-386 · +3 more
  17. O-RING NSN 5331-01-004-7228 P/N AS568-122MILP5516-70DURM · V3D10078PC24 · A180-122CP · MILR83248/1-122 · +3 more
  18. O-RING NSN 5331-01-004-6984 P/N MIL-R-83248 TY 1 · AS568-011MILG23652TY1 · ARP568-011MILG2 3652TY1 · AS568-011MIL-G- 23652 TY 1 · +3 more
  19. O-RING NSN 5331-01-003-7383 P/N 150942 · 150942 · 150942 · 150942 · +3 more
  20. O-RING NSN 5331-00-997-7456 P/N 571023 · 640573 · 571022 · 571023 · +3 more
  21. O-RING NSN 5331-00-995-9039 P/N BACP11P111 · 060959-111 · A111SR270-70 · 000959-111 · +3 more
  22. O-RING NSN 5331-00-995-9038 P/N BACP11P217 · 060959-217 · A217SR270-70 · MILR25897-217ES · +3 more
  23. O-RING NSN 5331-00-995-8434 P/N BACP11P115 · 060959-115 · A115SR270-70 · MILR25897-115ES · +3 more
  24. O-RING NSN 5331-00-995-8285 P/N X1514T230C · 20A11CM230 · X1514T230C · 20A11CM230 · +3 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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