This is an unrestricted solicitation for commercial items, specifically parts that must have clear traceability to the Original Equipment Manufacturer (OEM), Chelton Limited. All parts must be approved under Federal Aviation Administration (FAA) guidelines to ensure airworthiness, and no drawings or schematics are available from the agency. A firm-fixed price purchase order will be awarded on a competitive basis. The applicable North American Industry Classification Standard Code is 336413, with a small business size standard of 1,250 employees. No budget amount or performance location is specified.