3M 7010303990 Heat Shrink End Cap Ske 8/20 Black 50-pack

Product Description

The 3M 7010303990 is a heavy-duty heat shrinkable end cap designed to seal cable ends against moisture, mechanical stress, and environmental exposure. Built under the SKE product line, this end cap is manufactured from semi-rigid, flame-retardant, cross-linked polyolefin and comes with a factory-applied adhesive inner lining that bonds to the cable jacket during heat application to form a reliable environmental seal. It fits cable diameters ranging from 0.31 to 0.43 inches and is supplied in a standard color of black. Each case contains 50 individual end caps.

This end cap is suited for heavy-duty applications where cable terminations are exposed to moisture, dust, chemicals, or physical damage. Typical use cases include sealing the ends of power cables, control cables, and instrumentation cables in industrial, utility, and commercial electrical installations. Electricians and cable installers use these end caps when terminating cables that will be left idle, stored in the field, or installed in wet or corrosive environments. The SKE series covers six different size ranges to accommodate a broad range of cable diameters.

Key Features

• Semi-rigid, flame-retardant, cross-linked polyolefin construction for durability in demanding environments
• Factory-applied internal adhesive lining provides a moisture-tight environmental seal upon heat activation
• Accommodates cable diameters from 0.31 to 0.43 inches
• Black color for standard identification and UV compatibility in exposed installations
• Sold in a case quantity of 50 units, reducing per-unit cost on larger jobs

Compatibility

Designed as a heavy-duty OEM-style heat shrinkable end cap for sealing cable ends across a broad range of power, control, and instrumentation cable types where the cable diameter falls between 0.31 and 0.43 inches.

Installation Notes

Installation is performed by licensed electricians or qualified cable technicians following applicable NEC requirements. De-energize and lock out all circuits before working on cable terminations. Slide the end cap over the cable end and apply uniform heat using an appropriate heat gun, working from the closed end toward the open end to allow air to escape and ensure full adhesive flow. Avoid open-flame heat sources, as uneven heat can damage the polyolefin material or prevent a complete seal.

Technical Specifications

• Cable Diameter Range: 0.31 to 0.43 inches
• Material: Semi-rigid flame-retardant cross-linked polyolefin
• Adhesive Lining: Factory applied
• Color: Black
• Case Quantity: 50 each
• Weight: 0.01 pounds per unit
• UPC: 00051138481544

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010303990