The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of a control indicator, specifically NSN 7R-6605-016154319-AM, with a reference number of 287A880-2, requiring a quantity of three units. This procurement is classified as a sole source requirement due to the government's inability to obtain sufficient data to contract with any source other than the current supplier, highlighting the specialized nature of the navigational instruments involved. Interested vendors must note that government source approval is necessary prior to award, and those not already approved must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure. For inquiries, potential bidders can contact Danielle M. Cutrera at danielle.cutrera@navy.mil or by phone at (215) 697-6566.