3M 7010400840 Heat Shrink Tubing FP301 1/4 in 48 in Red

Product Description

The 3M 7010400840 is a thin-wall heat shrink tubing from the FP-301 series, supplied in a 48-inch length with a 1/4-inch nominal diameter in red. FP-301 tubing provides a balanced combination of electrical insulation, physical durability, and chemical resistance suited for wire bundling, strain relief, and conductor protection in industrial and military-grade applications. The tubing shrinks uniformly when heat is applied, creating a tight, clean sleeve over connections, splices, and terminals. Electricians, panel builders, and military maintenance technicians use this product where reliable insulation and environmental protection are required.

This tubing is appropriate for use in industrial control panels, harness assembly, aerospace wiring, and field service repairs where a consistent, low-profile insulating sleeve is needed. The red color supports color-coded identification of circuits or conductor groupings, which is common practice in multi-conductor harness builds and panel wiring. The 48-inch stick length suits both bench fabrication and in-field service cuts.

Key Features

• Thin-wall FP-301 construction for low-profile insulation over conductors and splices
• 1/4-inch nominal diameter fits a range of wire gauges and connector bodies
• 48-inch length allows flexible cut-to-size use in fabrication or field repair
• Red color enables color-coded circuit or harness identification
• Balanced electrical, physical, and chemical resistance properties for industrial and military applications

Compatibility

Designed as an OEM-style replacement or direct-use heat shrink sleeve for wire harness and electrical insulation applications requiring 1/4-inch thin-wall tubing per FP-301 series specifications.

Installation Notes

Installation is performed by electricians, harness technicians, or qualified maintenance personnel. De-energize all circuits before applying heat shrink tubing to live conductors or terminals. Apply heat evenly using a calibrated heat gun, working from the center outward, to achieve uniform shrink without scorching. Follow applicable NEC requirements and workmanship standards for the installation environment.

Technical Specifications

• Series: FP-301
• Nominal Diameter: 1/4 inch
• Length: 48 inches
• Color: Red
• Wall Type: Thin-Wall
• Weight: 0.04 pounds
• UPC: 00051128598955

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010400840