Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ZPC175 5 found under Compressor Unit Reciprocating by Zwick Energy Researach Organization. The National Stock Number assigned to this part is 4310011900285, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ZPC175 5.