McDonald Paper & Restaurant Supplies. Winco ALST-40, 40-Quart Aluminum Stock Pot, NSF, 4mm. Winco ALST-40, 40-Quart 14.4-Inch High Aluminum Stock Pot with 14.6-Inch Diameter, NSF, is a versatile cookware that is just perfect for preparing broths, soups and stews, braising meats and vegetables, making sauces and more. The pot has wide base and high sidewalls making it very durable. This stockpot is fabricated from premium quality 18-8 stainless steel with encapsulated sandwich bottom consisting of an aluminum core encased in two layers. The 40-quart stockpot is designed for even and thorough heat distribution. The pot by Winco is a must to have cookware for any restaurant’s kitchen plus it is NSF approved.