Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 30-252 found under Valve Bonnet 1St Cylinder Inlet by Hardie Tynes Co Inc. The National Stock Number assigned to this part is 4310000970934, 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 30-252.