Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 58977 found under Switch Safety Neutral Start by Champion Road Machinery Inc. The National Stock Number assigned to this part is 2920016674909, and the Federal Supply Class is 2920 Engine Electrical System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 58977.