Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S61-1840 found under Adapter Switch Actuator by Miltope Corporation. The National Stock Number assigned to this part is 5930002014429, 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 S61-1840.