NSN: 5930-00-854-4579

Technical Characteristics

• Thread Series Designator

  unc single mounting facility

• Knob Manufacturer Code

  82121

• Nominal Thread Size

  0.250 inches single mounting facility

• Thread Class

  2b single mounting facility

• Switch Actuator Stop Device Type

  fixed stop single actuator

• Switch Actuator Positioning Increment

  90.0 degrees single actuator

• Thread Quantity Per Inch

  20 single mounting facility

• Contact Load Current Rating

  30.0 amperes resistive load dc at sea level

• Contact Load Current Rating

  30.0 amperes resistive load ac at sea level

• Mounting Facility Circle Radius

  1.609 inches nominal single mounting facility

• Pole Quantity

  1 each section rear

• Style Designator

  tap, circuit selector

• Contact Switching Action

  breaks before makes each section rear

• Flat Height

  0.312 inches nominal single actuator

• Shaft Length

  0.750 inches nominal single actuator

• Features Provided

  actuator knob

• Mounting Method

  bracket single mounting facility and threaded hole single mounting facility

• Mounting Facility Pattern

  four position circular single mounting facility

• Overall Length

  5.250 inches nominal

• Individual Section Quantity

  7

• Switch Actuator Indexing Position Quantity

  4 single actuator

• Throw Quantity

  4 each section rear

• Shaft Diameter

  0.375 inches nominal single actuator

• Overall Height

  4.125 inches nominal

• Switch Contact Basic Design

  nonpile-up symmetrical

• Shaft Type

  round, flatted, threaded hole single actuator

• Terminal Type

  screw

• Contact Voltage Rating In Volts

  250.0 dc at sea level

• First Flat Length

  0.500 inches nominal single actuator

• Contact Voltage Rating In Volts

  500.0 ac at sea level

• Hazardous Locations/Environmental Protection

  dustproof