Sight mark 35, 50 caliber aa mount, naval ord systems
General Description
Steel, mil-s-890 cl, b; 1.875 in.O/a lg; 0.500-20 unf-3a, 0.995 in.Thd length; 1st end 0.406 in od by 0.187 in. Lg; 2nd end 0.375 in. Od by 0.125 in. Lg, with slot 0.046 in. Wide by 0.93 in. Deep; 0.500 in. O/a od