The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of accumulators, head assembly, under a federal contract. This requirement includes an increase in the total quantity of units needed, with the updated order quantity now totaling seven units, as part of a Foreign Military Sales (FMS) spares purchase. The items are critical components for aircraft hydraulic, vacuum, and de-icing systems, necessitating government source approval prior to award, as the government lacks sufficient data to contract with sources other than the current supplier. Interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure, and for further inquiries, they can contact Kate Schalck at 215-697-1020 or via email at kate.n.schalck.civ@us.navy.mil.