Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GR1-55SY30010 found under Switch Rotary by Eao Ltd. The National Stock Number assigned to this part is 5930014454155, 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 GR1-55SY30010.