Brass, 1.188 square, all corners rounded, 0.562 in. High, shouldered 1.062 in. Dia, threaded 0.312 in. Deep, 0.938-16
NSN 5975-01-474-5852
NSN 6105-01-339-6210
NSN 5915-00-116-4015
NSN 5965-01-304-1718
NSN 6650-01-292-6425
NSN 5999-00-031-4413
NSN 6620-01-265-2887
NSN 6145-01-211-1592
NSN 5990-00-366-0112
NSN 6650-01-388-1140
NSN 5935-01-373-3061
NSN 5915-00-368-4564