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The 3M 7100089249 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 assemblies. Built to deliver a balanced combination of electrical, physical, and chemical resistance, this tubing is well suited for a broad range of industrial and military wiring applications. Each piece measures 48 inches in length with a 1-inch diameter. The package contains 24 pieces. Electricians, panel builders, and military-spec assembly technicians are the typical installers.
FP-301 thin-wall heat shrink tubing is commonly used in industrial control panels, mil-spec wire harness builds, and general electrical wiring assemblies where a clean, protective sleeve over terminated conductors or splices is required. It performs across a wide range of environmental conditions and is appropriate for both commercial and government-contract electrical work where consistent insulation quality is needed.
Designed as an OEM-style heat shrink sleeve for general industrial and military wire and cable insulation applications requiring a 1-inch thin-wall tubing diameter.
Installation is performed by electricians or wire harness technicians using a calibrated heat gun or oven set to the appropriate recovery temperature for FP-301 material. Always de-energize the circuit and verify lockout/tagout procedures before sleeving any live conductor assembly. Avoid using open flame as a heat source, as uneven heat distribution can cause incomplete or irregular shrink. Follow applicable NEC or military wiring specification requirements for the installation environment.
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