The Department of Defense, specifically the Department of the Navy's NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of 13 units of pitch lock actuators, which are critical components used in helicopter rotor systems. This procurement is part of a Foreign Military Sales (FMS) spares buy and will utilize competitive procedures to ensure the best value for the government, considering factors such as price, capacity, delivery, and past performance. Interested vendors must be approved sources and are required to submit necessary documentation for source approval if they are not already on the approved list. Proposals must be submitted to Kate Schalck via email at kate.n.schalck.civ@us.navy.mil by the specified deadline, with further details available through the NAVSUP WSS source approval information brochures.