Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0782-9541 HPT-500-200-580-DK-4S found under Valve Regulating Fluid Pressure by Airgas Safety Inc. The National Stock Number assigned to this part is 1650013810970, 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 0782-9541 HPT-500-200-580-DK-4S.