Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EST.75 found under Transformer Power by Cress Mfg Co. The National Stock Number assigned to this part is 5950011626099, 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 EST.75.