This specification covers the engineering requirements and process controls for brush plating of hard, low stress nickel by electrodeposition. It should be used, in conjunction with AMS 2451, for low stress, hard nickel deposits. This process has been used typically to provide wear resistance and to repair damaged, worn, or mismachined parts in applications requiring hardness, fatigue resistance, and service at temperatures up to 450°F (232°C) but usage is not limited to such applications.