Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 24138-749-0 found under Resistor Variable W by Ultra Electronics Limited. The National Stock Number assigned to this part is 5905004687997, 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 24138-749-0.