121909LQ

Technical Characteristics

• Reference Number Differentiating Characteristics

  material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications

• Switch Actuator Stop Device Type

  fixed stop single actuator

• Contact Switching Action

  breaks before makes 1st section rear breaks before makes 2nd section rear breaks before makes 3rd section rear breaks before makes 4th section rear breaks before makes 5th section rear breaks before makes 6th section rear makes before breaks 7th section

• Mounting Facility Pattern

  four position rectangular 1st mounting facility two position in-line 2nd mounting facility

• Thread Class

  2b 1st mounting facility 2b 2nd mounting facility

• Iii Knob Manufacturer Code

  82121

• Mounting Method

  bracket and threaded hole 1st mounting facility bracket and unthreaded hole 2nd mounting facility

• Switch Actuator Positioning Increment

  90.0 degrees single actuator

• Throw Quantity

  3 each section rear

• The Manufacturers Data

• Overall Length

  8.000 inches nominal

• Design Control Reference

  121909lq

• Features Provided

  actuator knob

• Style Designator

  1 tap, circuit selector

• Contact Load Current Rating

  10.0 amperes resistive load ac at sea level

• Unthreaded Mounting Hole Diameter

  0.312 inches nominal 2nd mounting facility

• Individual Section Quantity

  9

• Switch Contact Basic Design

  nonpile-up symmetrical

• Iii Hazardous Locations/Environmental Protection

  dustproof

• Contact Voltage Rating In Volts

  125.0 ac at sea level

• Shaft Length

  1.375 inches nominal single actuator

• Thread Quantity Per Inch

  20 1st mounting facility

• Terminal Type

  tab w/screw

• Shaft Diameter

  0.375 inches nominal single actuator

• Flat Height

  0.250 inches nominal single actuator

• Nominal Thread Size

  0.250 inches 1st mounting facility

• First Flat Length

  1.375 inches nominal single actuator

• Manufacturers Code

  82121

• Thread Series Designator

  unc 1st mounting facility

• Shaft Type

  round, flatted, threaded hole single actuator

• Special Features

  item must comply with requirements of desc production standard no. l03160; for navy nuclear propulsion plant products only

• Longest Horizontal Distance Between Mounting Centers

  2.281 inches nominal 1st mounting facility 3.812 inches nominal 2nd mounting facility

• Switch Actuator Indexing Position Quantity

  4 single actuator

• Criticality Code Justification

  feat

• Overall Width

  4.375 inches nominal

• Longest Vertical Distance Between Mounting Centers

  2.281 inches nominal 1st mounting facility

• Pole Quantity

  1 each section rear

• ~1

  rear breaks before makes 8th section rear makes before breaks 9th section rear