NSN: 5930-01-043-3518

Technical Characteristics

• Switch Contact Basic Design

  nonpile-up symmetrical

• Shaft Type

  round, flatted, threaded hole single actuator

• First Flat Length

  0.875 inches nominal single actuator

• Flat Height

  0.219 inches nominal single actuator

• Contact Switching Action

  makes before breaks 1st section front

• Rotor Through Connection Quantity

  1 each section

• Contact Voltage Rating In Volts

  500.0 ac at sea level

• Contact Switching Action

  breaks before makes 2nd section front

• Thread Series Designator

  unc single mounting facility

• Mounting Facility Circle Radius

  1.605 inches nominal single mounting facility

• Knob Manufacturer Code

  82121

• Thread Class

  2b single mounting facility

• Individual Section Quantity

  2

• Shaft Diameter

  0.250 inches nominal single actuator

• Contact Load Current Rating

  30.0 amperes resistive load ac at sea level

• Overall Length

  3.906 inches nominal

• Switch Actuator Momentary Position

  counterclockwise single actuator

• Knob Manufacturer Part Number

  a

• Pole Quantity

  1 each section rear

• Switch Actuator Positioning Increment

  45.0 degrees single actuator

• Style Designator

  tap, circuit selector

• Overall Width

  4.125 inches nominal

• Criticality Code Justification

  feat

• Mounting Method

  bracket single mounting facility and threaded hole single mounting facility

• Mounting Facility Pattern

  four position circular single mounting facility

• Shaft Length

  1.250 inches nominal single actuator

• Nominal Thread Size

  0.112 inches single mounting facility

• Special Features

  item must comply with requirements of desc production standard; for navy nuclear propulsion plant only

• Hazardous Locations/Environmental Protection

  explosion proof

• Terminal Type

  tab w/screw

• Throw Quantity

  4 each section front

• Thread Quantity Per Inch

  40 single mounting facility

• Switch Actuator Indexing Position Quantity

  4 single actuator

• Overall Height

  4.125 inches nominal