Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AA 4400-1 found under Cable Assembly Spec by Semco Instruments Inc. The National Stock Number assigned to this part is 6150013451292, and the Federal Supply Class is 6150 Miscellaneous Electric Power And Distribution Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AA 4400-1.