Aluminum, composition 2024, temper t4, qq-a-225/6, chemical filmper mil-c-5541, 0.780 in. Min, 0.80 in. Max h, 0.05 in. Min, 0.07 in. Maxthk flange, two 0.180 in. Min, 0.20 max diameter holes in flange, 1.29 in. Min, 1.31 in. Max diameter flange at center 0.49 in. Min, 0.51 in. Max diameter firstoffset, 1.202 in. Diameter second offset with 0.414 in. W by 0.179 in. Deepring groove, 0.2812 in. Diameter by 0.31 in.Deep hole in rear of flange, 0.10max diameter hole front face of flange, used on gearbox assembly part no.541810-6-1, f-111 acft
