Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HRZ4KP28.6-28PE found under Clamp Block by Hydac Corp. The National Stock Number assigned to this part is 5340013326636, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HRZ4KP28.6-28PE.