The ERR38 external retaining snap ring is engineered for 3/8" shafts, featuring a ring-shaped design with a single opening for easy installation. The lugs at the opening flare slightly, facilitating smooth axial placement onto the shaft and providing complete contact within the groove for enhanced grip. Crafted from durable carbon steel, this snap ring withstands extreme temperatures ranging from -100 to 500 F, making it suitable for a variety of industrial applications.