1-321-802-5889

NSN 5905-01-287-2252

Wire Wound Variable Resistor

About this product

Cylindrical bushing mounted body style, between 0.487 inches and 0.503 inches first flat length, between 0.216 inches and 0.220 inches flat height, shaft style: round, flatted.

Manufacturer part number 55-50-284 for national stock number 5905012872252.

Datasheet

  • Product description

    Precision Wire Wound Variable Resistor NSN 5905-01-287-2252.

  • MPN or Model

    55-50-284

  • Schedule B
    8533.39.0080 (Wirewound variable resistors, nesoi)
  • NMF (National Motor Freight)
    062960 - Reostats/parts NOI
  • Unit Weight (Est.)
    0.1 lb
  • Section Quantity
    1
  • Body Style
    Cylindrical bushing mounted
  • Reliability Indicator
    Not established
  • First Flat Length
    Between 0.487 inches and 0.503 inches
  • Flat Height
    Between 0.216 inches and 0.220 inches
  • Body Diameter
    0.865 mils and 0.885 centimeters
  • Shaft Diameter
    Between 0.248 inches and 0.250 inches
  • Shaft Length
    Between 0.865 inches and 0.885 inches
  • Mounting Bushing Length
    0.250 inches
  • Body Length
    Between 1.458 inches and 1.478 inches
  • Shaft Style
    Round, flatted
  • Shaft Bearing Type
    Sleeve
  • Switch Type
    Rotary
  • Switch Voltage Rating In Volts
    28.0
  • Actuator Type
    Single shaft
  • Effective Electrical Rotation In Deg Angular Rotation
    Between 265.0 and 275.0
  • Maximum Starting Torque
    15.00 inch-ounces
  • Maximum Running Torque
    6.00 inch-ounces
  • Maximum Stop Torque
    240.00 inch-ounces
  • Nonturn Device Location
    At 3 oclock
  • Nonturn Device Radius
    0.375 inches
  • Mechanical Backlash In Deg Angular Rotation
    2.0
  • Switch Operating Position
    Start of rotation
  • Switch Contact Arrangement
    Double pole, single throw, normally open
  • Fragility Factor
    Moderately rugged
  • End Application
    Nav-8a/b/cdcn
  • Screw Thread Diameter
    0.375 inches
  • Screw Thread Series Designator
    Unef
  • Screw Thready Qty Per Inch (tpi)
    32.0
  • Terminal Location
    Radially positioned over less than half the circumference
  • Mounting Method
    Standard bushing
  • Features Provided
    Humidity proof and shaft seal and switch
  • Cubic Measure
    0.895 cubic inches
  • Electrical Resistance Per Section
    5.0 percent, rated amperes c and better flooring
  • Rotary Actuator Travel In Angular Deg
    Between 295.0 and 305.0
  • Function Conformity Tolerance Per Section
    -1.00/+1.00 single section
  • Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
    135.0 single section
  • Power Dissipation Rating Per Section In Watts
    4.0 7th secondary quality
  • Function Conformity Per Section
    Single section independent linearity
  • Resistance Tolerance Per Section In Percent
    -5.0/+5.0 single section
  • Actuator Travel Control Feature
    Stops
  • Function Characteristic Per Section
    7 oclock all primaries
  • Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
    40.0 single section
  • Switch Current Type And Rating In Amps
    8.000 dc
  • Test Data Document
    76301-5-1680 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 solder stud
More from these suppliers
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 5905012872252

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
55-50-284 Samarius Precision Instruments Inc
78G-0001-002 Greystone Electronics Corp
14WB2 Servo Instrument Corporation
SP128 Data Instruments Inc
5M1680-002 Boeing Company, The
SP128 Honeywell Sensing & Control
Stock Check
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