The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of radiators under solicitation notice type. The requirement involves the supply of helicopter rotor blades, drive mechanisms, and components, categorized under NAICS code 333998, which encompasses all other miscellaneous general-purpose machinery manufacturing. These items are critical for maintaining operational readiness and support for naval aviation systems. Interested vendors must ensure they are an approved source or submit the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure, available online. For inquiries, potential bidders can contact Lauren Phillips at lauren.n.phillips6.civ@us.navy.mil or by phone at 215-697-6566.