Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3728-00010 found under Transformer Electri by Quarterwave Corp. The National Stock Number assigned to this part is 5950011924229, 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 3728-00010.