MIL-D-6728A, MILITARY SPECIFICATION: DAMPERS; ENGINE EXHAUST FLAME AND GLARE (15-NOV-1956) [NO S/S DOCUMENT]

MIL-D-6728A, MILITARY SPECIFICATION: DAMPERS; ENGINE EXHAUST FLAME AND GLARE (15-NOV-1956) [NO S/S DOCUMENT]., This specification covers engine exhaust flame and glare dampers.