Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ZS38K4E-TFD-250 found under Compressor Refrigeration by United Refrigeration Inc. The National Stock Number assigned to this part is 4130016271165, and the Federal Supply Class is 4130 Refrigeration And Air Conditioning Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ZS38K4E-TFD-250.