Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3R052 found under Blade Thickness Gage by W W Grainger Inc. The National Stock Number assigned to this part is 5210013999368, and the Federal Supply Class is 5210 Measuring Tools Craftsmens. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3R052.