Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S8301-1 found under Fuseholder Block by Cooper Bussmann Corp. The National Stock Number assigned to this part is 5920014521312, and the Federal Supply Class is 5920 Fuses Arresters Absorbers And Protector. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S8301-1.