The PNC1/2-BK080 from Alpha Wire is cable gland with 0.236" (6.00mm) to 0.472" (12.00mm) outside cable diameter range, 1/2" NPT thread size and 0.840" (21.3mm) panel hole size. This black color cable gland is made of polyamide (PA), nylon. Operating temperature range is from -20°C to 100°C.