The Department of Defense, specifically the Department of the Navy, is seeking to procure 171 units of a centrifugal pump unit for repair or modification, as outlined in the presolicitation notice. The procurement is restricted to specific sources as defined by source control or selected item drawings, due to the unavailability of suitable technical data or manufacturing knowledge for alternative sources. This equipment is critical for maintaining operational capabilities within the Navy's weapon systems support. Interested parties must submit their capabilities and interest to the primary contact, Amy Reynolds, via email at AMY.REYNOLDS1@NAVY.MIL, within 45 days of the notice publication, as the government intends to negotiate with only one source under FAR 6.302-1.