Lee Plugs

Featured Product from Lee Co. (The)

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The Lee Plug is a cylindrical plug with a tapered hole part way through its center and numerous small grooves on its outside diameter. It is slipped into a reamed counterbore in the product. A tapered pin is then driven into the plug until the ends of the pin and the plug are flush with each other. Controlled expansion causes the lands and grooves of the plug to "bite" into the surrounding material forming independent seals and retaining rings. Result: a positive, reliable, leak and trouble-proof seal for both liquids and gases. This simple principle opens the way to vast improvements in design and manufacture of all fluid devices.

The Lee Plug is simply the most successful method to seal drilled holes for critical applications. Over 100 million are in use on aircraft, missiles, spacecraft, machine tools, down hole oil tools, molds - anything that requires a permanent leak-proof seal.

  • Proof Pressures up to 32,000 psid
  • Sizes from .093" to .656" in Diameter
  • Aluminum, Stainless Steel or Monel Models Available
  • High Pressure Plugs Available