FF-H-1820, FEDERAL SPECIFICATION: HARDWARE, BUILDER\'S - EXIT DEVICES (30-JUL-1974) [S/S BY BHMA-A156.3]

FF-H-1820, FEDERAL SPECIFICATION: HARDWARE, BUILDER\'S - EXIT DEVICES (30-JUL-1974) [S/S BY BHMA-A156.3]., This specification covers exit devices and auiliary hardware items for both interior and exterior application.