Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 128HM10284-1 found under Retainer Locking Hydraulic Cylin by Triumph Actuation Systems Llc. The National Stock Number assigned to this part is 1650009709968, and the Federal Supply Class is 1650 Aircraft Hydraulic Vacuum And De-Icing System Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 128HM10284-1.