This is an unrestricted solicitation for commercial items, specifically parts from OEM Mason Electric Co., to be awarded as a firm-fixed price purchase order on a competitive basis. All parts must have clear traceability to the OEM and be approved under FAA guidelines, with no drawings or specifications available from the agency. The government may increase the quantity of Line Item 1 by up to 20 units, for a maximum of 35, at the unit price specified, with the option exercisable within one year after award. Delivery of any added items will continue at the same rate as the original order unless otherwise agreed. No budget amount or performance location is specified.