The Department of Defense, through the NAVSUP Weapon Systems Support office, is seeking to procure a sole source item, the Mixer Stage, Frequency, with NSN 7R-5895-014262766-XE and part number 460590-1, from L3Harris Technologies Inc. This procurement involves a quantity of one unit, which is critical for the agency's operations and is intended for a Foreign Military Sales (FMS) buy for Australia. The government anticipates receiving a single acceptable offer due to the proprietary nature of the item, as no drawings or data are available for alternative sources. Interested parties must submit their capability statements or proposals to the primary contact, Michael J. Keith, via email at michael.j.keith40.civ@us.navy.mil, within 45 days of this notice, as the procurement will not be delayed for source approval requests.