Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X05740120 found under Semiconductor Devic by Drs Technologies Inc. The National Stock Number assigned to this part is 5980016262528, and the Federal Supply Class is 5980 Optoelectrical Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like X05740120.