Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DC3857 found under Brush Set Electrical Contact by American Standard Inc. The National Stock Number assigned to this part is 5977002287946, 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 DC3857.