MIL-STD-1344 Military Standard: Test Methods for Electrical Connectors

Defense Tests

MIL-STD-1344 Military Standard: Test Methods for Electrical Connectors

The MIL-STD-1344 standard, a US military defense standard, describes uniform test methods for testing electrical connectors. The requirements that electrical connectors subject to these test methods must meet are specified in separate specifications, as appropriate, and tests are performed as specified herein.

MIL-STD-1344 Military Standard: Test Methods for Electrical Connectors

According to this standard, unless otherwise specified, all measurements are made under the following ambient conditions:

  • Temperature: 15-35 degrees
  • Atmospheric pressure: 550-800 millimeters of mercury
  • Relative humidity: 20-80 percent

When the maximum or minimum temperature is specified here, the specified temperature must be reached and a deviation of 5 degrees allowed. For example, a temperature cycle can be defined as minus 55 degrees to plus 125 degrees. Equipment used during testing should keep the sample area within 3 degrees of variation in specified test temperatures. The temperature control of this equipment should be 2 degrees or better for a single point.

The reference conditions for the calculations are 20 degrees Celsius for temperature, 760 millimeters of mercury for air pressure and does not apply to relative humidity.

The calibration requirements of the test equipment must be in accordance with the MIL-C-45662 standard.

The test methods defined in the MIL-STD-1344 standard are:

1) Environmental tests (1000 class)

  • Salt spray (corrosion)
  • Gender
  • temperature cycle
  • height dip
  • Temperature life
  • hydrostatic pressure
  • ozone exposure
  • air leak
  • The firewall
  • altitude-low temperature
  • Flammability
  • simulated lifetime
  • immersion in liquid

2) Mechanical tests (2000 class)

  • Contact axial concentricity
  • aging care
  • Crimp tensile strength
  • Shock (specified blow)
  • Vibration
  • Probe damage (contacts)
  • contact holding
  • crushing
  • cable pulling
  • tip hold
  • Acceleration
  • Contact insertion and removal force
  • Mating and mismatched forces
  • contact connection and separation force
  • Blow
  • Resilience
  • Cable seal flexing
  • Gage location and storage

3) Electrical tests (3000 class)

  • Dielectric strength tension
  • low signal level contact resistance
  • Insulation resistance
  • Contact resistance
  • standing wave rate
  • magnetic permeability
  • Shell-to-shell conductivity

Our organization also provides testing services for electrical connectors within the scope of MIL-STD-1344 standard, with its trained and expert staff and advanced technological equipment, among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors.

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