Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B4 1 2 WFV 219 2 400 found under Resistor Fixed Wire by Gamble Charles T Industries. The National Stock Number assigned to this part is 5905012670945, 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 B4 1 2 WFV 219 2 400.