This is a sole-source, fixed-price contract intended for Saginaw Products Corporation to supply a specific Main Gear Box Mobility Cart for the CH-53K program. The item will support U.S. Navy and Israeli Foreign Military Sales maintenance operations. The justification is that the named company is the sole developer and manufacturer with proprietary data, and the government lacks the technical data to obtain it elsewhere. The performance location is not specified. This notice explicitly states it is not a request for competitive proposals.