Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 643896 found under Brush Electrical Contact by Hurst Industries Inc. The National Stock Number assigned to this part is 5977000302006, 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 643896.