Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W72642-1B found under Transformer Audio F by Selex Es Limited. The National Stock Number assigned to this part is 5950009622836, 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 W72642-1B.