This is a restricted solicitation for the repair of four Spinner units (NSN 1610-01-530-8098), anticipated to result in a sole-source firm-fixed-price purchase order. The contractor must provide a Certificate of Conformance, and no drawings or specifications are available from the agency. Offerors must have the expertise to obtain OEM parts from Hamilton Sundstrand Corporation. The closing date for receipt of offers is June 12, 2026, at 4:00 p.m. Eastern Time. No budget amount or performance location is specified.