Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BB 9001663 01 found under Resistor Variable Wire Wound Pre by L3 Communications Corp. The National Stock Number assigned to this part is 5905016684066, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BB 9001663 01.