51-1921-4B4C

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51-1921-4B4C

5930-00-436-0052

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Janco Corporation

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Technical Characteristics

  • First Flat Length

    0.250 inches nominal single actuator

  • Flat Height

    0.216 inches nominal single actuator

  • Shaft Length

    0.437 inches nominal single actuator

  • Overall Diameter

    1.000 inches minimum and 1.306 inches maximum

  • Nonturn Device Radius

    0.375 inches nominal at 3:00 o'clock

  • Individual Section Quantity

    4

  • Nonturn Device Type

    tab at 3:00 o'clock

  • Operating Temp Range

    -65.0/+125.0 deg celsius

  • Nominal Thread Size

    0.375 inches single mounting facility

  • Contact Voltage Rating In Volts

    115.0

  • Contact Voltage Rating In Volts

    28.0

  • Shaft Flat/Slot Angular Location

    195.0 degrees from nonturn device single actuator

  • Rotor Through Connection Quantity

    1 each section

  • Switch Actuator Indexing Position Quantity

    4 single actuator

  • Terminal Type

    tab, solder lug

  • Switch Actuator Positioning Increment

    90.0 degrees single actuator

  • ~1

    a level

  • Contact Load Current Rating

    250.0 milliamperes resistive load and 100.0 milliamperes inductive load dc at se

  • Style Designator

    9 tap, circular, bushing mount

  • Test Data Document

    81349-mil-s-3786 specification

  • Thread Series Designator

    unef single mounting facility

  • Thread Class

    2a single mounting facility

  • Thread Length

    0.437 inches nominal single mounting facility

  • Hazardous Locations/Environmental Protection

    explosion proof

  • Overall Length

    2.937 inches nominal

  • Shaft Diameter

    0.250 inches nominal single actuator

  • Switch Contact Basic Design

    nonpile-up symmetrical

  • Pole Quantity

    1 each section front

  • Throw Quantity

    4 each section rear

  • Mounting Method

    threaded bushing single mounting facility

  • Shaft Type

    round, flatted single actuator

  • Contact Switching Action

    breaks before makes each section rear

  • Detent Rotational Torque Range

    +1.0/+4.5 inch-pounds (pound-inches) single actuator

  • Contact Load Current Rating

    75.0 milliamperes resistive load ac at sea level

  • Specification/Standard Data

    81349-mil-s-3786/4 government specification

Certified to
AS6081 Methods

Implementing Quality Procurement

A rigorous vendor selection process and vendor management system are essential to ensuring quality.
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Supplying Quality Products

We take every measure to ensure that we supply quality, authentic parts including a strict vendor selection process and rigorous product inspections..
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Providing Quality People

Our team of dedicated account managers, procurement professionals and specialized inspectors is the most valuable resource we have.
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