Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RK524685 found under Parts Kit Control by The Marquardt Company. The National Stock Number assigned to this part is 1650009409315, 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 RK524685.