The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 100 units of a shielding gasket, specifically NSN 1R-5999-016923609-BL, with reference number AG657000-27. This requirement is classified as sole source, indicating that the government lacks sufficient data to contract with any source other than the current supplier, and the items are subject to Free Trade Agreements and the World Trade Organization Government Procurement Agreement. Interested vendors must obtain Government Source Approval prior to award and submit the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure, which is available online. For inquiries, potential bidders can contact Casey M. Brown at (215) 697-3752 or via email at casey.m.brown20.civ@us.navy.mil.