MIL-L-12632D, MILITARY SPECIFICATION: LOUDSPEAKERS, PERMANENT MAGNET (ENCASED, 2-WATT, FUNGUS, GUNBLAST, AND IMMERSION-RESISTANT), GENERAL SPECIFICATION (10-JUN-1974)

MIL-L-12632D, MILITARY SPECIFICATION: LOUDSPEAKERS, PERMANENT MAGNET (ENCASED, 2-WATT, FUNGUS, GUNBLAST, AND IMMERSION-RESISTANT), GENERAL SPECIFICATION (10-JUN-1974)., This specification covers the general requirements for 2-watt, 4-inch diameter, permanent magnet loudspeakers encased in metal cabinets These loudspeakers are fungus-, gun blast, and immersion-resistant.