Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 49C6548 5 found under Fuseholder Block by The Boeing Company. The National Stock Number assigned to this part is 5920008287904, 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 49C6548 5.