The 3/8 x .016 NAS1149 Military Flat Washer is a thin, round disc with a hole in the center. It is made of 18-8 stainless steel, which is resistant to corrosion and rust. The washer has a diameter of 3/8 inches and a thickness of .016 inches. It is designed to be used with bolts and screws to distribute the load and prevent damage to the surface of the material being fastened. This washer meets the requirements of NAS1149, a military specification for aerospace fasteners. It is also DFAR compliant, meaning that it has been manufactured in accor