Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4H081 found under Holder Dial Indicator by Grainger Div Of W W Grainger Inc. The National Stock Number assigned to this part is 5210001385333, 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 4H081.