Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HUP1D4M3020 found under Parts Kit Linear Actuating Cylin by Iowa Industrial Hydraulics Inc. The National Stock Number assigned to this part is 3040002317069, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HUP1D4M3020.