Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4001945-101 found under Circuit Card Assembly by Trak Microwave Corporation. The National Stock Number assigned to this part is 5999012820598, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4001945-101.