The Department of Defense, through the Naval Supply Systems Command (NAVSUP) Weapon Systems Support, is soliciting proposals for a sole source contract to repair hydraulic pumps, specifically the PUMP, HYDRAULIC with NSN 4320012077228 and Part Number 70652-02300-050. This requirement is critical as the government lacks sufficient data to contract with any source other than the current supplier, emphasizing the importance of these components in military operations. Interested vendors must be approved sources and are required to submit necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure, which can be accessed online. For inquiries, potential bidders should contact Liam Cunningham at liam.f.cunningham2.civ@us.navy.mil.