3M 7000133557 Heat Shrink Thin-wall Tubing 3/8 in 48 in White

Product Description

The 3M 7000133557 is a thin-wall heat shrink tubing from the FP-301 series, designed to provide reliable insulation, strain relief, and environmental protection for wire and cable terminations. Sized at 3/8 inch diameter and 48 inches in length, this white tubing suits a broad range of industrial and military wiring applications. FP-301 is engineered to deliver a balanced combination of electrical insulation performance, physical durability, and chemical resistance. Licensed electricians, military contractors, and industrial maintenance technicians use this tubing when terminating conductors, bundling wire harnesses, or sealing connections against moisture and abrasion.

This tubing is suited for use in industrial control panels, military electronics, and commercial wiring assemblies where consistent shrink performance and insulation integrity are required. The 48-inch length allows technicians to cut custom segments to fit a variety of termination lengths and connector backshell applications. Its white color aids in visual identification of circuit groups within multi-conductor harness builds.

Key Features

• Thin-wall FP-301 construction delivers a balance of electrical, physical, and chemical protection
• 3/8 inch recovered diameter sizing fits a common range of wire gauges and connector bodies
• 48-inch stick length allows field cutting to required segment lengths
• White color supports color-coded wire identification in harness assemblies
• Suitable for both industrial and military wiring applications

Compatibility

Designed as an OEM-style heat shrink solution for general wire and cable insulation, strain relief, and bundling applications across industrial and military electrical assemblies.

Installation Notes

Installation is typically performed by licensed electricians or qualified wiring technicians following applicable NEC guidelines. De-energize all circuits before applying heat shrink to any conductor or termination. Use a heat gun calibrated to the appropriate recovery temperature for FP-301 series tubing and apply heat evenly along the length of the tubing to achieve full recovery without scorching. Do not use an open flame as a heat source, as uneven heat can cause incomplete shrink or damage to the tubing and underlying conductors.

Technical Specifications

• Series: FP-301
• Wall Type: Thin-Wall
• Diameter: 3/8 inches
• Length: 48 inches
• Color: White
• Weight: 0.12 pounds
• UPC: 00051128596630

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000133557