Presolicitation notice from the Department of Defense, Department of the Navy, and NAVSUP Weapon Systems Support is seeking to procure a generator alternator. The generator alternator falls under the category of generators and generator sets, electrical. The item is flight critical and requires government source approval prior to contract award. Only previously approved sources have been solicited. Interested parties who are not approved sources must submit the necessary information for source approval. The procurement includes a quantity of 2 units and delivery is FOB origin.