This is a solicitation for a firm-fixed price purchase order anticipated to be awarded on a sole source basis to Leonardo Spa for specific aircraft parts. The required items are detailed O-rings, bushings, bolts, seals, and a brake handle, each with specified quantities and manufacturer part numbers. All items must have clear, documented traceability to the named Original Equipment Manufacturers, and the contractor must provide a Certificate of Conformance. Only quotations with F.O.B. Destination or F.O.B. Origin shipping terms will be accepted. Performance location is not specified, and no budget information is provided.