171505-1 is a red insulated connector insulator designed for use with #4 studs in electrical connector assemblies. The product features a height dimension (H DIM) of 3.02 mm and an insulator diameter range of 2.03 to 3.18 mm, providing precise dimensional control for reliable connector fit and function. The red insulation color aids in visual identification and organization within connector systems. This component is commonly used in automotive, industrial, and telecommunications applications where color-coded insulation and precise dimensional tolerances are required for proper assembly and electrical performance.