The Naval Air Warfare Center intends to award a Fixed Price contract on a limited competitive basis to NAV-Aids Ltd and its six authorized distributors for Air Data Accessory Sets. The procurement is for a base quantity of twelve units and an option for two more, supporting the CH-53K Program and a Foreign Military Sales case for Israel. The work is for maintenance operations at the O-Level for the CH-53K Aircraft. The competition is limited because NAV-Aids Ltd is the OEM and owns the proprietary data, with only it and its listed distributors having the necessary expertise. The Government states this notice is not a request for full and open competitive proposals.