Rotary Switch

Part Number 17957-21

Quality inspected with certificate of conformity. For questions and pricing call us at +1 210-468-8090

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Features

2b 1st mounting facility thread class, 14.030 inches nominal overall length, unc 2nd mounting facility thread series designator.

0.500" 2nd mounting facility thread length 2.810" overall width actuator knob 24 1st mounting facility thread quantity per inch tap, circuit selector.

Includes quality control certificate of conformance.

Specifications

  • Thread Length:
    0.500 inches 2nd mounting facility
  • Hazardous Locations/environmental Protection:
    Explosion proof
  • Overall Height:
    2.810 inches
  • Overall Width:
    2.810 inches
  • Shaft Length:
    2.530 inches single actuator
  • Individual Section Quantity:
    25
  • Knob Manufacturer Code:
    82121
  • Knob Manufacturer Part Number:
    G
  • Longest Horizontal Distance Between Mounting Centers:
    2.300 inches 1st mounting facility
  • Longest Vertical Distance Between Mounting Centers:
    2.300 inches 1st mounting facility
  • Switch Contact Basic Design:
    Nonpile-up symmetrical
  • Pole Quantity:
    2 each section rear
  • Throw Quantity:
    2 each section rear
  • Mounting Method:
    Bracket 1st mounting facility and threaded hole 1st mounting facility
  • Mounting Method:
    Threaded stud 2nd mounting facility
  • Features Provided:
    Actuator knob
  • Thready Qty Per Inch (tpi):
    24 1st mounting facility
  • Thready Qty Per Inch (tpi):
    56 2nd mounting facility
  • Thread Size:
    0.086 inches 2nd mounting facility
  • Thread Size:
    0.190 inches 1st mounting facility
  • Contact Voltage Rating In Volts:
    125.0 ac at sea level
  • Mounting Facility Pattern:
    Four position rectangular 1st mounting facility
  • Switch Actuator Indexing Position Quantity:
    2 single actuator
  • Shaft Type:
    Rectangular/square, threaded hole single actuator
  • Square Shaft Size:
    0.250 inches single actuator
  • Terminal Type:
    Tab w/screw
  • Contact Switching Action:
    Makes before breaks, breaks before makes each section rear
  • Switch Actuator Positioning Increment:
    45.0 degrees single actuator
  • Switch Actuator Stop Device Type:
    Fixed stop single actuator
  • Contact Load Current Rating:
    10.0 amperes resistive load ac at sea level
  • Precious Material And Location:
    Rotor and stator contact surfaces silver
  • Precious Material:
    Silver
  • Style Designator:
    Tap, circuit selector
  • Test Data Document:
    81349-mil-s-21604 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
  • Specification Data:
    81349-mil-s-21604/5 government specification
  • Federal Supply Class (fsc):
    Switches
  • National Stock Number (nsn):
    5930-00-831-2787

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