Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 351281 2 3811 found under Paper Payroll Machi by Aircraft Spruce And Specialty Co. The National Stock Number assigned to this part is 7530013394528, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 351281 2 3811.