Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AQ4-8656-50 found under Gage Pressure Dial Indicating by 3D Instruments Llc. The National Stock Number assigned to this part is 4240014499095, and the Federal Supply Class is 4240 Safety And Rescue Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AQ4-8656-50.