Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17980-3 found under Transformer Radio Frequency by Viking Technologies Ltd. The National Stock Number assigned to this part is 5950007803897, 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 17980-3.