The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of receiver-transmitters, identified by NSN: 7RE 5841 010874423 and part number HG7194C1, with a total quantity of 8 units. This procurement is critical for enhancing radar equipment capabilities, which play a vital role in airborne operations and defense systems. Interested vendors must ensure they are an approved source prior to award, and if not, they must submit the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure. Proposals should be submitted via email to Joshua Seltzer at joshua.j.seltzer.civ@us.navy.mil by the specified due date, with early and incremental deliveries preferred.