Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 503252 found under Spindle And Bearing by Doall Baltimore Company. The National Stock Number assigned to this part is 3413012462055, and the Federal Supply Class is 3413 Drilling And Tapping Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 503252.