MIL-F-18953B, MILITARY SPECIFICATION: FANS, VANEAXIAL AND TUBEAXIAL, VENTILATION AND AIR CONDITIONING, NAVAL SHIPBOARD (22 OCT 1990) [S/S BY MIL-PRF-18953C]

MIL-F-18953B, MILITARY SPECIFICATION: FANS, VANEAXIAL AND TUBEAXIAL, VENTILATION AND AIR CONDITIONING, NAVAL SHIPBOARD (22 OCT 1990) [S/S BY MIL-PRF-18953C]., This specification covers fixed vaneaxial and tubeaxial fans for Naval shipboard use in ventilation and air conditioning systems.