This SSS is to notify companies that the Defense Logistics Agency, Redstone Arsenal, Alabama, is seeking qualified sources for the acquisition of an Environmental Control Vest; NSNs: 8415-01-694-1162, 8415-01-694-1164, 8415-01-694-1165, and 8415-01-694-1169; Part Numbers 1050703-3, 1050703-5, 1050703-7, and 1050703-9: in support of the Bradley weapon system.