Presolicitation notice from the Department of Defense, Department of the Navy, for the procurement of NSN 1R-1560-014617380-QE, Hook Point, Arrestin. This item is used for airframe structural components and is critical for flight. The procurement requires engineering source approval from the design control activity to maintain the quality of the part. Only approved sources have been solicited for this item. Interested parties must submit the required information for source approval. The proposed contract action is for supplies or services for which the Government intends to negotiate with only one source. All responsible sources may identify their interest and capability to respond to the requirement.