.94 inch in length, 0.380 inch in width, and 0.380 inch hub diameter; 0.1875 inch hub ID; 0.50 inch depth; complies with QQ-S-764, CL303, condition annealed, finish code; passivated according to QQ-P-35, Type II (PS83116NA, procedure A); finish surfaces noted per PS83601LE, black velvet coating