Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 48-063-003 found under Cover Fuse by Tel Instrument Electronics Corp. The National Stock Number assigned to this part is 5920014605495, 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 48-063-003.