The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting quotes for the procurement of four units of a specific fitting, identified by NSN: 1RM 1680 LLF02L606 and part number: 439A4019-104. The procurement requires that all offers include necessary documentation for government source approval, as these items necessitate prior approval before award, emphasizing the importance of compliance with the NAVSUP WSS Source Approval Brochure. This solicitation is critical for maintaining fleet support needs, and interested vendors must submit their quotes via email to Ryan P. Stock at RYAN.P.STOCK2.CIV@US.NAVY.MIL by the specified due date. Failure to provide the required source approval information may result in disqualification from the award process.