Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GB1004 1 found under Coil Field by Hamilton Mfg Co. The National Stock Number assigned to this part is 5950008984163, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like GB1004 1.