Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 31-2T1500V1T219T640S found under Resistor Adjustable by Ward Leonard Electric Company Inc. The National Stock Number assigned to this part is 5905009313799, 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 31-2T1500V1T219T640S.