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NSN 5905-00-987-3111

Wire Wound Variable Resistor

About this product

Wire leads terminated with winchester plug m7p; case supplied with mounting lugs.

Manufacturer part number 9997820 for national stock number 5905009873111.

Datasheet

  • Product description

    Precision Wire Wound Variable Resistor NSN 5905-00-987-3111.

  • MPN or Model

    9997820

  • Schedule B
    8533.39.0080 (Wirewound variable resistors, nesoi)
  • NMF (National Motor Freight)
    062960 - Reostats/parts NOI
  • Section Quantity
    2
  • Body Style
    Rectangular
  • Reliability Indicator
    Not established
  • Overall Length
    Between 4.125 inches and 4.215 inches
  • Overall Height
    Between 1.105 inches and 1.135 inches
  • Overall Width
    Between 0.785 inches and 0.815 inches
  • Mounting Slot Width
    Between 0.175 inches and 0.205 inches
  • Shaft Diameter
    Between 0.1871 inches and 0.1875 inches
  • Shaft Length
    Between 0.970 inches and 1.030 inches
  • Body Length
    Between 3.155 inches and 3.185 inches
  • Body Width
    Between 0.655 inches and 0.685 inches
  • Body Height
    Between 0.735 inches and 0.765 inches
  • Shaft Style
    Round
  • Actuator Type
    Single shaft
  • Mounting Facility Quantity
    2
  • Terminal Location
    Rear end
  • Mounting Method
    Slot
  • Electrical Resistance Per Section
    20.0 kilohms all sections
  • Function Conformity Tolerance Per Section
    -0.50/+0.50 all sections
  • Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
    175.0 all sections
  • Power Dissipation Rating Per Section In Watts
    1.0 free air all sections
  • Function Conformity Per Section
    All sections independent linearity
  • Resistance Tolerance Per Section In Percent
    -5.0/+5.0 all sections
  • Function Characteristic Per Section
    All sections linear
  • Tempurature Coefficient Of Resistance Wire Per Section In Ppm Per Deg Celsius
    -20.0/+20.0 all sections
  • Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
    40.0 all sections
  • Test Data Document
    18876-9997820 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
  • Terminal Type And Quantity
    7 wire lead
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Precision Wire Wound Variable Resistor

A resistor in which a sliding or rolling contact moves over an exposed area of the resistive element to change the ohmic value of the output. The functional tolerance (linearity) of the output is equal to or less than plus or munus 1 percent on linear outputs. Specified outputs such as sine, cosine, tangent, etc., shall be considered to be precision. For items having manually positioned taps designed to be set and fixed prior to use, see resistor, adjustable, for items with step by step variation, see rheostat and resistor, step by step. For tandem-mounted items designed to function together as an attenuator (and rated accordingly), see attenuator, variable. Excludes resistor (1), variable, nonwire wound, nonprecision; resistor (1), variable, nonwire wound, precision; and resistor (1), variable, wire wound, nonprecision.

Mechanic Bill explains Wire Wound Variable Resistor

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NSN 5905009873111

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
9997820 U S Army Aviation And Missile
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