Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MODEL NO 819 BSPT found under Nipple Chuck by Ridge Tool Company. The National Stock Number assigned to this part is 3450014224514, and the Federal Supply Class is 3450 Machine Tools Portable. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MODEL NO 819 BSPT.