The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking qualified contractors to procure 13 units of the Valve, ECS (NSN 7R-1660-016686579-P8, P/N 423775-1). The procurement requires the contractor to provide labor, materials, and facilities necessary for the delivery of these items, which are critical for the operation of the Proven Multi-Mission Maritime Patrol Aircraft. The government intends to negotiate with Pacific Scientific Co. as the sole source for this contract, citing the lack of available data for repairs or manufacturing of the item. Interested parties must submit capability statements within 15 days of this notice, and for those not already approved as sources, a Source Approval Request package is required. For further inquiries, contact Vlad Maksimchuk at (215) 697-3533 or via email at vladimir.maksimchuk@navy.mil.