Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3D21 found under Terminal Lug by G And W Electric Company. The National Stock Number assigned to this part is 5940006798164, and the Federal Supply Class is 5940 Lugs Terminals And Terminal Strips. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3D21.