This is a solicitation for the repair, overhaul, and testing of 10 units of a specific radio modulator (NSN 016631882, PN 2687200G002) to a Ready for Issue condition. The work must be performed at the contractor's or subcontractor's facility, with the specific source and location for performance to be specified by the bidder in their proposal. The contractor is responsible for all facilities, labor, materials, and test equipment, and must have a quality system conforming to ISO 9001/AS9100. A critical requirement is that offerors must be an approved government source or submit a source approval request with their proposal, as awards are contingent on this approval.