Presolicitation DEPT OF DEFENSE DEPT OF THE NAVY is seeking a cable assembly for communication equipment. The design of this part is unstable and major changes are anticipated. Government source approval is required due to the item's flight critical nature. Interested parties must submit the necessary technical data for evaluation. The proposed contract action is for supplies or services for which the Government intends to solicit and negotiate with only one source. All responsible sources may identify their interest and capability to respond to the requirement.