Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WIFW990C4R found under Cable Assembly Special Purpose E by Williams Pyro Inc. The National Stock Number assigned to this part is 6150001463082, 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 WIFW990C4R.