The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support Mechanicsburg, is soliciting quotes for the repair and modification of disk valves under a federal contract. The procurement requires contractors to provide either firm-fixed-price (FFP) or time-and-materials (T&M) pricing, along with estimated costs for the repair of the specified items, which are critical components in naval operations. The contract emphasizes compliance with stringent quality assurance standards and specific material requirements, including the prohibition of mercury contamination, given the items' intended use on submarines and surface ships. Interested contractors should direct inquiries to Dianne L. Wydra at 215-697-6681 or via email at DIANNE.L.WYDRA.CIV@US.NAVY.MIL for further details regarding submission deadlines and requirements.