This is a 100% Small Business Set-Aside for an Indefinite Quantity Contract for a CYLINDER & PISTON ASSEMBLY, with a 5-year base period and an estimated annual quantity of 40 units. The item is critical, subject to export control, and production units will be delivered FOB Destination with inspection and acceptance at origin. The government intends to solicit from a limited number of sources under FAR 6.302, but interested parties may submit proposals within 45 days of this notice. The estimated solicitation issue date is July 11, 2026, when technical data will become available. No budget amount is specified, and the location for performance is not stated.