The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of Cylinder Assembly, A, as part of a Foreign Military Sales (FMS) spares purchase. This requirement is classified under the NAICS code 336413, focusing on the manufacturing of other aircraft parts and auxiliary equipment, and is deemed a sole source requirement due to the lack of sufficient data to contract with other sources. Interested vendors must obtain Government Source Approval prior to award and provide all necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure. For inquiries, potential bidders can contact Troi Lentini at 215-697-0375 or via email at troi.lentini@navy.mil.