Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AE5 4 21 13A 6D 1 1400SER found under Transformer Power by Rotork Controls Ltd. The National Stock Number assigned to this part is 5950014519037, 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 AE5 4 21 13A 6D 1 1400SER.