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Precision Wire Wound Variable Resistor

NSN: 5905-00-929-7938 | Model: 361644

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.

NSN Properties and Flags
NATO Stock Number
5905-00-929-7938
DEMIL
NO
Section Quantity
8
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
Between 0.9683 inches and 0.9688 inches
Pilot Length
Between 0.0570 inches and 0.0670 inches
Undercut Diameter
Between 1.052 inches and 1.067 inches
Undercut Width
Between 0.0570 inches and 0.0670 inches
Body Diameter
Between 1.099 inches and 1.109 inches
Shaft Diameter
Between 0.1245 inches and 0.1250 inches
Shaft Length
Between 0.734 inches and 0.766 inches
Mounting Stud Length
Between 0.250 inches and 0.281 inches
Body Length
Between 3.360 inches and 3.400 inches
Mounting Lip Diameter
Between 1.0520 inches and 1.0670 inches
Mounting Lip Depth
Between 0.0570 inches and 0.0670 inches
Shaft Style
Round, slotted
Shaft Bearing Type
Bearing
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
360.0
Maximum Starting Torque
4.00 inch-ounces
Maximum Running Torque
4.00 inch-ounces
Shaft End Play
0.001 inches
Shaft Radial Play
0.001 inches
Mechanical Backlash In Deg Angular Rotation
0.25
Fragility Factor
Moderately rugged
Screw Thread Diameter
0.112 inches
Screw Thread Series Designator
Unc
Screw Thready Qty Per Inch (tpi)
40.0
Mounting Facility Quantity
2
Terminal Location
Radially positioned over more than half the circumference
Mounting Method
Clamp ring and threaded stud
Features Provided
Humidity proof
Electrical Resistance Per Section
5.0 kilohms all sections
Tap Location From Ccw Terminal Per Section In Deg Of Effective Electrical Rotation
0.0 7th section and 12.0 7th section and 48.0 7th section and 109.0 7th section and 128.0 7th section and 140.0 7th section and 152.0 7th section and 350.0 7th section
Rotary Actuator Travel In Angular Deg
360.0
Function Conformity Tolerance Per Section
-0.50/+0.50 all sections
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-50.0/+50.0 all sections
Power Dissipation Rating Per Section In Watts
0.25 free air all sections
Function Conformity Per Section
All sections absolute linearity
Fixed Tap Quantity Per Section
8 1st section
Tap Location Tolerance Per Section
-1.0/+1.0 degrees angular rotation all sections
Resistance Tolerance Per Section In Percent
-10.0/+10.0 all sections
Actuator Travel Control Feature
Continuous motion
Function Characteristic Per Section
All sections linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
100.0 all sections
Unpackaged Unit Weight
6.0 grams
Test Data Document
80045-361644 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
77 turret

Pricing and Availability

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NSN 5905-00-929-7938 Datasheet

Supply Class (FSC):
Resistors
Cross Reference:
  • 361644
Cage Codes:
  • 3 Communications Cincinnati L (CAGE 80045)
Schedule B & Trade:
  • Schedule B: 8533390080 (NAICS 334416)

    Wirewound variable resistors, nesoi

  • SITC: 77233

    Wirewound electrical variable resistors (including rheostats and potentiometers)

  • End Use: 20005

    Electric apparatus

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    062960 - Reostats/parts noi

  • WCC:

    658 - Electrical appliances, small

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    P - 77.5

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    Y
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    -------
  • Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $2,289.34 to $3,815.57..
Does NSN 5905-00-929-7938 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Defense Logistics Agency
What is the NIIN of NSN 5905-00-929-7938?
009297938 or 00-929-7938
Does NSN 5905-00-929-7938 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5905-00-929-7938?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
May 13, 1972