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The 3M 7000133689 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 connections. Rated for a wide range of industrial and military applications, FP-301 tubing delivers a proven balance of electrical insulation, physical toughness, and chemical resistance. The clear finish allows visual inspection of the underlying conductor or splice without removal. This tubing is installed by electricians, low-voltage technicians, and field service pros who need a fast, clean method of sealing and protecting terminated connections in demanding environments.
This tubing is suited for residential, commercial, and industrial electrical work, as well as military-specification applications where consistent insulation performance is required. At 1/4 inch nominal diameter and 6 inches in length, each piece handles standard wire bundle and terminal insulation tasks. The clear material makes it especially useful in panel work and harness assembly where identification of the underlying components during inspection matters.
Designed as an OEM-style thin-wall heat shrink solution for general wire and cable insulation applications across industrial, commercial, and military electrical installations.
Heat shrink tubing of this type is installed by licensed electricians and low-voltage technicians. De-energize the circuit fully before sliding tubing over the conductor or splice. Apply uniform heat using a heat gun, working from the center outward to avoid air pockets or uneven shrinkage. Do not use open flame, as uncontrolled heat can damage the tubing or the underlying conductor insulation.
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