The government is seeking contractors to manufacture the MK 124 Mod 0 Impulse Cartridge (NSN 1377-00-193-8832) under a full and open competition. The necessary technical data for manufacturing is available. This is a sources sought notice to identify interested and capable contractors, not a formal request for proposals. The government will review responses to determine whether to proceed with a competitive solicitation. The performance location is Mechanicsburg, Pennsylvania.