Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 58A5A57-1 found under Arrester Electrical by Navair And Navsea Managed. The National Stock Number assigned to this part is 5920002850253, 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 58A5A57-1.