Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number V1650-Z3-X250 found under Resistor Variable W by Siemens Schweiz Ag. The National Stock Number assigned to this part is 5905008121059, 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 V1650-Z3-X250.