Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1749-2312 found under Switch Pressure by Peterbilt Motors Co. The National Stock Number assigned to this part is 5930015282055, 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 1749-2312.