Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KDJ56-17 found under Piston Landing Gear by Dover Engineered Systems Inc. The National Stock Number assigned to this part is 1620003051900, and the Federal Supply Class is 1620 Aircraft Landing Gear Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KDJ56-17.