Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B1D0393-1 found under Heateraircraft by Crane Electronics Inc. The National Stock Number assigned to this part is 1660016887451, and the Federal Supply Class is 1660 Aircraft Air Conditioning Heating And Pressurizing Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B1D0393-1.