Century AO Smith 9695 Blower Motor, 1/5, 1/6, 1/8 HP, Split-Phase, 1050 RPM, 115V Nominal Size-54" X 42" X 1.5" The hook extends 3-7/16 inches

The hook extends 3-7/16 inches from the wall once installed via the three holes in the flange

Bradley 140-332 Channel Rear Inlet Replacement Part

Bradley 269-121 ADApter-F 1-1/4 Copper Replacement Part

The flange on the unit is fabricated out of type-304

Bradley 269-113 ADApter-F 1-1/2 Copper Replacement Part

Century AO Smith 9695 Blower Motor, 1/5, 1/6, 1/8 HP, Split-Phase, 1050 RPM, 115V Nominal Size-54" X 42" X 1.5" The hook extends 3-7/16 inchesFeatures: Includes resilient mounting rings, Thru bolts on shaft end Item: Direct Drive Blower Motor, Motor Type: Split Phase, HP: 1 5, 1 6, 1 8, Nameplate RPM: 1050, Voltage: 115, Enclosure: Open, Rotation: CW, Hz: 60, Phase: 1, Speeds: 3, Bearings: Sleeve, Shaft Number: 1, Shaft Length: 5. 5", Shaft Dia.: 0. 5", Thermal Protection: Yes, Cooling: Air Over.