Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 302B1649 found under Switching Unit Power Transfer by Automatic Switch Company. The National Stock Number assigned to this part is 6110010524962, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 302B1649.