Presolicitation notice from the Department of Defense, specifically the Department of the Navy, is seeking to procure 20 units of NSN 7R-1680-014877367-EL, which is an Actuator, Rotary, Air. This item is used in aircraft and is classified under the category of Miscellaneous Aircraft Accessories and Components. The procurement requires the item to be acquired from/repaired by a specified source(s) due to the unavailability of suitable technical data or manufacturing/repair knowledge from other sources. The item is flight critical and requires government source approval prior to contract award. Interested parties must submit the necessary information for source approval along with their proposal. The solicitation provides links to the source approval information brochures. The proposed contract action is non-competitive, but all responsible sources may express their interest and capability to respond to the requirement. The qualification requirements and additional information can be obtained from the specified office mentioned in the solicitation.