Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GS20435-1 found under Protractor Valve Throttle by Hamilton Sundstrand Corporation. The National Stock Number assigned to this part is 5220011732534, and the Federal Supply Class is 5220 Inspection Gages And Precision Layout Tools. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like GS20435-1.