National Presto Industries, Inc. operates through two business segments: the Housewares/Small Appliance segment and the Defense segment. The Housewares/Small Appliance segment designs, markets and distributes housewares and small electrical appliances, including pressure cookers and canners, kitchen electrics and comfort appliances. The Defense segment manufactures 40 millimeter (mm) ammunition, precision mechanical and electro-mechanical assemblies, and medium caliber cartridge cases; performs Load, Assemble and Pack (LAP) operations on ordnance-related products primarily for the United States Government and prime contractors; produces and sells a range of less lethal products and support accessories, and provides training for the use of less lethal products, and manufactures detonators, booster pellets, release cartridges, lead azide, and other military energetic devices and materials. The Company's Defense segment includes the operations of AMTEC Corporation.