MIL-DTL-83522E
3.5.3 Environmental requirements. The connectors shall be capable of satisfactory operation and shall meet all performance
requirements as specified herein and in the specification sheets (see 3.1), when exposed to the environmental conditions as stated
herein. There shall be no evidence of mechanical damage, loosening of component parts, separation of bonded surfaces and the
optical and mechanical performance shall be within the limits specified herein.
3.5.3.1 Pressure altitude. When tested as specified in 4.8.1, the connectors shall operate within the performance limits
specified in 3.5.1.2 during and after exposure to the operating pressure (sea level to 70,000 feet), and after exposure to the non-
operating pressure (sea level to 70,000 feet). There shall be no evidence of physical damage to the connector.
3.5.3.2 Temperature. When tested as specified in 4.8.2, the connector shall operate within the performance limits specified in
3.5.1.2 during exposure to the operating temperatures specified below, and there shall be no evidence of physical damage to the
connector.
a. Temperature range 1:
1. Operating: -46°C to +85°C (-51°F to 185°F).
2. Non-operating: -62°C to +85°C (-80°F to 185°F).
3. Storage: -62°C to +85°C (-80°F to 185°F).
b. Temperature range 2:
1. Operating: -55°C to +165°C (-67°F to 329°F).
2. Non-operating: -40°C to +85°C (-40°F to 185°F).
3. Storage: -40°C to +85°C (-40°F to 185°F).
3.5.3.3 Thermal shock. When tested as specified in 4.8.3, the connectors shall show no evidence of mechanical damage,
loosening of component parts, separation of bonded surfaces, or other damage and the optical performance shall be within the limits
specified in 3.5.1.2.
3.5.3.4 Vibration. When tested as specified in 4.8.5, the connectors shall show no evidence of broken, loose, deformed or
displaced parts, cracks, chips, or other damage which would result distortion or wear and may result in fatigue of the mechanical parts.
The requirements for signal discontinuity as specified in 3.5.1.4 shall be met during the test when the connector is vibrated and for
change in optical transmittance shall be met after the test. Mated connectors or connectors and adapters, as applicable, shall not
disengage nor exhibit loosening (including the coupling mechanism).
3.5.3.5 Shock. When tested in accordance with 4.8.6, connectors shall not be damaged and there shall be no loosening of
parts. The requirements of 3.5.1.4 shall be met during the test and 3.5.1.2 shall be met after the test.
3.5.3.6 Temperature humidity cycling. When tested as specified in 4.8.7, the connectors shall operate within the performance
limits specified in 3.5.1.2 during and after exposure to the relative humidity of 95 percent at ambient temperatures up to +65°C. There
shall be no visual evidence of deterioration of component parts or constituent materials, loosening of finishes, physical distortion,
corrosion of metals, entrapment of moisture, separation of bonded surfaces or other damages.
3.5.3.7 Water submersion.
3.5.3.7.1 Operating. When tested in accordance with 4.8.8, visual inspection of the test connector shall reveal no
penetration of water into the sealed region of the mated connector. The mated connector shall operate within the optical performance
limits specified in 3.5.1.2 both during and after the test.
3.5.3.7.2 Non-operating. When specified (see 3.1), the unmated connector plug assemblies shall be submerged without
caps or protective covers, and shall operate without degradation of optical performance beyond the limits specified in 3.5.1.2 after being
externally cleaned (see 4.8.8).
3.5.3.8 Salt spray. When tested as specified in 4.8.9, the connectors shall show no visual evidence of deterioration such as
flaking, pitting, blistering or loosening of finishes, corrosion of metal surfaces, or in the case of plated metals, corrosion which has
passed through the plating and attacked the base metal.
3.5.3.9 Dust (fine sand). When tested as specified in 4.8.10, the connectors shall show no evidence of physical damage and
shall be within the optical performance limits specified in 3.5.1.2.
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