Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42G75124C found under Pipe Air Conditioning Heating by Sears Roebuck And Co. The National Stock Number assigned to this part is 4520010181980, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 42G75124C.