Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M51001-001 found under Switch Rotary by R And N Invesment Properties Lc. The National Stock Number assigned to this part is 5930011938275, 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 M51001-001.