Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UL9101-1 PIECE 73 found under Resistor Variable W by The Electric Tachometer Corp. The National Stock Number assigned to this part is 5905012406388, 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 UL9101-1 PIECE 73.