Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 744 1000 653 found under Black Asu 3 by Telephonics Corporation. The National Stock Number assigned to this part is 5999015704334, 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 744 1000 653.