Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XF4-5 found under by Loed Corp The. The National Stock Number assigned to this part is 3825006782560, and the Federal Supply Class is 3825 Road Clearing Cleaning And Marking Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XF4-5.