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The 3M 7000133630 is a thin-wall heat shrink tubing from the FP-301 series, designed to provide reliable electrical insulation, strain relief, and environmental protection for wire and cable assemblies. Each piece measures 48 inches in length with a 1/16 inch diameter and ships in a pack of 25. The clear jacket allows visual inspection of the underlying conductor or splice without removing the tubing. FP-301 is engineered to deliver a consistent balance of electrical, physical, and chemical resistance properties, making it a dependable choice for both industrial wiring and military-specification applications.
This tubing is well suited for insulating and bundling wire harnesses, protecting solder joints and terminals, and adding mechanical protection to cable entry points. Its thin-wall construction allows it to conform tightly to irregular surfaces upon heat activation. Electricians, aerospace and defense contractors, and field service technicians routinely use FP-301 series tubing in panel wiring, connector backshells, and general-purpose conductor insulation across industrial and mil-spec environments.
Designed as an OEM-style heat shrink solution for general-purpose wire insulation, splice protection, and strain relief in industrial and military wiring applications.
Installation is performed by licensed electricians or qualified technicians following applicable NEC guidelines. De-energize all circuits before applying heat shrink tubing to any live conductor or terminal. Apply heat evenly along the length of the tubing using a heat gun, working from the center outward to prevent air pockets or uneven shrinkage. Avoid open-flame heat sources, which can damage the tubing or create uneven recovery.
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