938-188-0001

9381880001 Nonwire Wound Variable Resistor

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Datasheet. 938-188-0001 specification

Section Quantity
The number of individual elements.

3

Shaft Bearing Type
Indicates the type of shaft bearing/s/ furnished.

bearing

Switch Type
Indicates the type of switch included in the item.

rotary

Actuator Type
Indicates the type of facility or arrangement provided for moving the variable contact(s).

dual concentric

Effective Electrical Rotation In Deg Angular Rotation
That part of the total rotational travel of the actuator that produces a change in output,expressed in degree angular rotation.

320.0

Maximum Starting Torque
The maximum amount of turning force required to initiate the actuator movement.

6.00 INCH-Ounces

Nonturn Device Radius
The linear measurement of the distance from the actuator centerline to the centerline of the nonturn device.

0.437in.

Shaft End Play
The total axial excursion of the shaft measured at the end of the shaft with a specified axial load applied alternately in the opposite directions.

0.00300in.

Shaft Radial Play
The total radial excursion of the shaft measured at a specified distance from the front surface of the unit with a specified radial load applied alternately in opposite directions at a specified point.

0.001in.

Switch Contact Arrangement
A designation that describes the basic electrical configuration of a switch.

single pole, single throw, normally open, both positions maintained

Terminal Location
The position of the terminal/s/ for making connection to an item.

radially positioned over less than half the circumference

Mounting Method
The means of attaching the item.

standard bushing

Electrical Resistance Per Section
A measure of the opposition to the flow of direct or alternating current per section.

10.000 kilohms 3rd section and 5.000 kilohms 2nd section and 1.000 kilohms 1st section

Function Conformity Tolerance Per Section
The permissible range per section by which the actual value of resistance or voltage at any specified point may deviate from the theoretical value for the linear or nonlinear function,expressed as a minus and plus percent.

-3.00/+3.00 all sections

Ambient Temp In Deg Celsius Per Section At Zero Percent Rated Power
The ambient temperature at which the power dissipation of each section is derated to zero percent of the full rated power.

125.0 single section

Temp Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
A constant that represents the proportionate change in resistance caused by a change in temperature per section,expressed in parts per million per degree celsius.

-250.0/+250.0 single section

Power Dissipation Rating Per Section In Watts
The maximum amount of electrical energy that can be expended per section,expressed in watts.

1.5 free air single section

Function Conformity Per Section
The fidelity of the relationship between the actual function characteristics and the theoretical function per section.

all sections independent linearity

Resistance Tolerance Per Section In Percent
The limits of permissible variation in the electrical resistance value per section of an item from its rated value,expressed in percent.

-5.0/+5.0 3rd section and -5.0/+5.0 2nd section and -1.0/+1.0 1st section

Ambient Temp In Deg Celsius Per Section At Full Rated Power
The ambient temperature,expressed in degrees celsius,of the medium surrounding each section at which it can be operated continuously at full rated power.

40.0 single section

Answers.

What quantity is this sold in?

1EA

What is the NSN for 938-188-0001?

5905-00-138-4239

How is this classified for shipping?

Schedule B number: 8533400080
nmfc 062960
Variable resistors, including potentiometers

What's the federal classification of 938-188-0001?

FSC 5905 ⁓ Resistors

Excluding resistance wire.

NSN 5905-00-138-4239 RESISTOR,VARIABLE,NONWIRE WOUND,

NIIN
001384239
NIIN Date
07/28/71
Schedule B
8533400080 
Name Code
37405
FIIG
A002A0
Item Weight
0.200lbs
Item Dimensions
--
QUP
Historical Price
$1,334.10 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. 11BF5409 Cage 25413
2. KC11-01X4/9567 Cage 04454
3. 5409 Cage 25413

Major End Users Countries and entities

  • - Department of The Navy 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
77.5 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps) 
Commodity (for shipments via water)
Electrical appliances, small 
NMFC (national motor freight code)
062960 REOSTATS/PARTS NOI 
UFC (universal freight code)
35140 

Similar by Design Other resistors with similar characteristics

Nothing similar to this part number was found in our inventory

938-188-0001 / Resistor,variable,nonwire wound,What is the formal definition of this item?

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), if given, of the output is greater than plus or minus 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, wire wound, nonprecision; resistor (1), variable, nonwire wound precision; and resistor (1), variable, wire wound, precision.