Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XR-245 found under Blade Knife by Alvin And Co Inc. The National Stock Number assigned to this part is 5110012460249, and the Federal Supply Class is 5110 Hand Tools Edged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XR-245.