Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 57282 found under Protector Electrica by Air Parts And Supply Co. The National Stock Number assigned to this part is 5975006428738, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 57282.