MIL-PRF-18953C, PERFORMANCE SPECIFICATION: FANS, VANEAXIAL AND TUBEAXIAL, VENTILATION AND AIR CONDITIONING, NAVAL SHIPBOARD (14 FEB 2005) [SUPERSEDES MIL-F-18953B]

MIL-PRF-18953C, PERFORMANCE SPECIFICATION: FANS, VANEAXIAL AND TUBEAXIAL, VENTILATION AND AIR CONDITIONING, NAVAL SHIPBOARD (14 FEB 2005) [SUPERSEDES MIL-F-18953B]., This specification covers fixed vaneaxial and tubeaxial fans for Naval shipboard use in ventilation and air conditioning systems.