The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of linear valves classified under the PSC code 4820. This competitive requirement involves the acquisition of flight-critical components that necessitate engineering source approval from the Naval Air Systems Command, ensuring that only approved manufacturers can participate in the bidding process. The valves are essential for critical shipboard systems that enable the launch and recovery of aircraft, highlighting their importance in maintaining operational safety and effectiveness. Interested parties must submit a Source Approval Request by the solicitation closing date and can direct inquiries to Kyle Matsinger at 215-697-2995 or via email at kyle.r.matsinger.civ@us.navy.mil.