Nitro 19 tooth roller chain sprockets are stocked for a wide range of ANSI chain sizes. All of our 19 tooth sprockets are manufactured from 1045CD (Cold Drawn = Higher Strength) carbon steel with hardened teeth. Nitro sprockets are used and trusted by many OEM's across several industries due our outstanding reputation for quality, service and dependability. Filter through our in-stock 19 tooth sprockets below! Looking for a custom 19 tooth sprocket? We offer custom made to order sprockets for OEM's and resellers - MOQ's apply. Sprockets can be manufactured from a wide range of materials.