U1401 is a pushbutton silicone sealing boot designed for toggle or pushbutton switches with Ø 6.35-40 NS (1/4-40 UNS) bushings, compatible with 18000, 9000, and 13000 series switches. The boot is manufactured from silicone material with a hex nut (nickel plated or black finish) and is available in multiple colors including black, red, green, and white. It features an operating temperature range of -40°C to +85°C, excellent elasticity, and good mechanical resistance, with dimensions of 11.00 mm height and 12.00 mm diameter. The boot effectively prevents dust, sand, and water from entering switches, making it ideal for harsh environmental applications and outdoor installations where moisture and contamination protection is critical.