This amendment increases the quantity of a POWER SUPPLY contract from 2 to 3 units, with all other terms unchanged. The work involves manufacturing and inspection, with specific requirements for design, marking, and quality assurance in accordance with listed military standards. The location for the inspection of material and final acceptance is not specified in the provided text. There is no specified budget amount mentioned. Contractors must be authorized distributors of the original manufacturer's item and will be responsible for inspection and compliance.