Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AP19 found under Brush Electrical Contact by Royal Electric Supply Company. The National Stock Number assigned to this part is 5977002141277, and the Federal Supply Class is 5977 Electrical Contact Brushes And Electrodes. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AP19.