3M FP1.000BK48IN-S Heat Shrink Tubing 1 in 48 in Black

Product Description

The 3M FP1.000BK48IN-S is a thin-wall, flexible polyolefin heat shrink tubing designed for electrical insulation, bundling, and strain relief in industrial and military-grade wiring applications. It carries a 600-volt rating and a 2:1 shrink ratio, collapsing from a 1-inch minimum expanded diameter down to a 0.5-inch maximum recovered diameter. At 0.035 inches wall thickness, it delivers reliable dielectric protection without adding significant bulk to a harness or termination. Licensed electricians, MRO technicians, and field service pros use this tubing where a clean, durable sleeve is needed over conductors, splices, and connector backshells.

This tubing is suited for residential, commercial, and industrial electrical work as well as aerospace and defense wiring applications. Each piece runs 48 inches in length, making it practical for sleeving longer wire runs or cutting down to size for multiple terminations. The black color aids in UV resistance and blends with standard cable management schemes. It activates at a shrink temperature of 212 degrees F, making it compatible with standard heat guns used in the field.

Key Features

• 2:1 shrink ratio — expands to 1 inch, recovers to 0.5 inch maximum recovered diameter
• 600-volt voltage rating for low-voltage wiring protection
• Flexible polyolefin construction with 2400 psi tensile strength
• Thin wall design at 0.035 inches for low-profile terminations
• Operating temperature range of -55 to 135 degrees C (-67 to 275 degrees F)
• UL and CSA approved; RoHS compliant
• Sold in a case quantity of 5 pieces, each 48 inches long

Compatibility

Designed as an OEM-style thin-wall heat shrink sleeve for general electrical wiring, splices, and connector insulation in industrial and military wiring applications where a 2:1 shrink ratio and 600-volt rating are required.

Installation Notes

Installation is performed by licensed electricians or qualified wiring technicians following applicable NEC guidelines. De-energize and lock out the circuit before applying any heat shrink to conductors or splices. Use a calibrated heat gun set to a temperature sufficient to reach 212 degrees F at the tubing surface, moving the gun evenly along the length to achieve uniform recovery and avoid scorching. Do not use an open flame, as uneven heat can cause incomplete recovery or material damage.

Technical Specifications

• Voltage Rating: 600 volts
• Shrink Ratio: 2:1
• Minimum Expanded Diameter: 1 inch
• Maximum Recovered Diameter: 0.5 inches
• Wall Type: Thin
• Wall Thickness: 0.035 inches
• Length: 48 inches
• Shrink Temperature: 212 degrees F
• Temperature Rating: -55 to 135 degrees C (-67 to 275 degrees F)
• Tensile Strength: 2400 psi
• Material: Flexible Polyolefin
• Color: Black
• Package Quantity: 5 pieces per case
• Package Weight: 1.6 pounds
• Package Length: 50.9 inches
• Package Height: 3.3 inches
• Package Width: 3.3 inches
• Approvals: UL, CSA
• RoHS Compliant: Yes
• Country of Origin: US

Standard Information

• Brand: 3M
• Manufacturer Part Number: FP1.000BK48IN-S