Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 16-03399 found under Switch Spst by Peterbilt Motors Co. The National Stock Number assigned to this part is 2590015309105, 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 16-03399.