This is a solicitation for a firm-fixed price purchase order to be awarded on a sole source basis to Leonardo Spa for specific aircraft parts, including a submerged APU pump, a cargo door hook, and a cargo dimmer unit. The contractor must provide a Certificate of Conformance and have the expertise and capability to obtain technical data and OEM parts from specified manufacturers. Only shipping terms of F.O.B. Destination or F.O.B. Origin are acceptable. The solicitation document incorporates provisions in effect as of November 28, 2025.