The TE Connectivity / Raychem Brand part 633973-000, also known as TTMS-12.7-4, is a high-quality heat shrink tubing designed for a variety of applications. With a shrink ratio of 4:1, it provides excellent insulation and protection for electrical connections, cables, and wires. This durable tubing is made from a flame-retardant polyolefin material, ensuring reliable performance in harsh environments. The 12.7mm size makes it suitable for a range of wire diameters, offering flexibility and versatility. Whether you need to repair, insulate, or bundle cables or wires, the TTMS-12.7-4 heat shrink tubing is a dependable solution for your electrical needs.