NSN: 5930-00-779-3999

Technical Characteristics

• 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 ac at sea level

• Knob Manufacturer Part Number

  a

• Pole Quantity

  1 each section rear

• Style Designator

  tap, circuit selector

• Terminal Type

  threaded stud

• Contact Switching Action

  breaks before makes each section rear

• Flat Height

  0.250 inches nominal single actuator

• Individual Section Quantity

  5

• Features Provided

  actuator knob

• Mounting Facility Pattern

  four position circular single mounting facility

• Shaft Length

  1.250 inches nominal single actuator

• Overall Width

  4.500 inches nominal

• Overall Height

  5.250 inches nominal

• Shaft Diameter

  0.375 inches nominal single actuator

• Switch Contact Basic Design

  nonpile-up symmetrical

• Shaft Type

  round, flatted, threaded hole single actuator

• First Flat Length

  0.875 inches nominal single actuator

• Mounting Facility Circle Radius

  1.109 inches nominal single mounting facility

• Overall Length

  7.625 inches nominal

• Contact Voltage Rating In Volts

  500.0 ac at sea level

• Hazardous Locations/Environmental Protection

  dustproof

• Mounting Method

  threaded hole single mounting facility

• Throw Quantity

  2 each section rear

• 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 Indexing Position Quantity

  3 single actuator

• Switch Actuator Stop Device Type

  fixed stop single actuator