Matl copper-beryllium alloy per ams 4530; heat treatment per ppd ps 7300 for 3 hours at 625 degrees f; must be free from oxide coating; 0.220 in. Lg; 0.218 in. Porm 0.008 in. W at bottom, 0.197 in. Porm 0.000/0.010 in. W at top; 0.115 in. H; shield angled 19 degrees porm 5 degrees 0.045 in. From bottom; top corners curved 0.050 porm 0.000/0.010 r
