Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 00939681000 found under Square Combination by Sears Roebuck And Co. The National Stock Number assigned to this part is 5210015093760, 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 00939681000.