Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 57ZTT-AA found under Transformer Power by Jfw Industries Incorporated. The National Stock Number assigned to this part is 6120016224800, and the Federal Supply Class is 6120 Transformers Distribution And Power Station. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 57ZTT-AA.