Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 223504 found under Brush Electrical Co by Precision Scientific Petroleum. The National Stock Number assigned to this part is 5977011415225, 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 223504.