The Government intends to award a sole source contract to Alloy Surfaces Company, Inc. Description: The NSN for the MJU-51A/B Decoy is 1370-01-468-6077. The MJU-51A/B infrared countermeasure decoy is an aluminum cartridge case purged with nitrogen and containing a payload of stacked special material elements that react with air. Each aluminum cartridge case contains a sealed receptacle cup with an O-ring for an impulse cartridge, a plastic/nylon piston, crimped and then sealed, with a metal end plate. When the impulse cartridge is initiated by the firing pulse, the impulse cartridge receptacle cup frangible membrane ruptures. Pressure inside the canister increases pushing on the piston and breaking the end cap seal deploying the special material payload in the air stream. The special material payload reacts with the air generating infrared energy to decoy surface to air and air to air missiles.

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