Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9YY23718 found under Switch Rotary by Grayhill Inc. The National Stock Number assigned to this part is 5930011935279, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9YY23718.