Presolicitation notice from the Department of Defense, Department of the Navy, for the procurement of 43 units of an electromagnet relay. This relay, with National Stock Number (NSN) 7H-5945-014547518, is used in various applications and is essential for the functioning of electrical systems. The relay must be acquired from/repaired by a specified source due to the unavailability of technical data or manufacturing/repair knowledge from other sources. Interested parties can obtain additional information from the primary contact person. The proposed contract action is intended for a single source, but all responsible sources can express their interest and capability to respond to the requirement. The Government will consider all proposals received within 45 days.