The ABBATRON/HH SMITH Part 4012 is a high-quality nylon round spacer designed for precision applications. With an outer diameter of 1/4" and an inner diameter of #4, this spacer is engineered to provide reliable insulation and support in various electronic and mechanical assemblies. Its 3/8" length ensures an optimal fit for maintaining component spacing and alignment. Crafted from durable nylon, it offers excellent resistance to wear, corrosion, and electrical conductivity. Ideal for projects requiring lightweight and non-conductive material solutions, the Part 4012 spacer is a versatile component that meets the demands of both DIY enthusiasts and professional engineers.