Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 16-06657 found under Switch Sptd by Peterbilt Motors Co. The National Stock Number assigned to this part is 2590015307715, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 16-06657.