311-1256-00

311125600 Nonwire Wound Variable Resistor

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Datasheet. 311-1256-00 specification

Section Quantity
The number of individual elements.

1

Body Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.

rectangular

Reliability Indicator
An indication that the level of probability that an item will operate without failure,at a specified rated capability,at a specified temperature,and for a specified period of time,has been established by testing random samples of production lot.

not established

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

0.371in. ⁓3/8"

Terminal Length
A measurement of the longest dimension of a terminal,in distinction from width.

0.188in.

Overall Height
The distance measured in a straight line from the bottom to the top of an item.

0.375in.

Overall Width
An overall measurement taken at right angles to the length of an item,in distinction from thickness.

0.375in.

Body Length
A measurement of the longest dimension of the body,in distinction from width.

0.188in.

Body Width
A measurement taken at right angles to the length of the body,in distinction from thickness.

0.375in.

Body Height
A measurement from the bottom to the top of the body,in distinction from depth.

0.375in.

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

flush drive with SLOT-Hole

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.

240.0

Center To Center Distance Between Terminals
The center to center distance between terminals.

0.200in.

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

rear end

Mounting Method
The means of attaching the item.

terminal

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

2.5 megohms single section

Rotary Actuator Travel In Angular Deg
The measurement of the rotary mechanical motion of the actuating shaft of an item,expressed in degrees.

240.0

Center To Center Distance Between Center Terminal And Outside Terminal
The center to center distance between the center terminal and the outside terminal.

0.100in.

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.

-150.0/+150.0 single section

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

0.5 free air single section

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.

-20.0/+20.0 single section

Actuator Travel Control Feature
The feature that controls the actuator travel.

stops

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.

70.0 single section

Standard Taper Curve Per Section
The rate of change and distribution of resistance per section,in relation to the rotation of the control shaft,which establishes a standard taper curve designated by an alphabetic character and accepted for common usage.

a single section

Terminal Type And Quantity
Indicates the type and number of terminals for providing electrical connection.

3 pin

Answers.

What quantity is this sold in?

1EA

What is the overall width?

0.375 inches

What is the NSN for 311-1256-00?

5905-01-016-6987

How is this classified for shipping?

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

What's the federal classification of 311-1256-00?

FSC 5905 ⁓ Resistors

Excluding resistance wire.

NSN 5905-01-016-6987 RESISTOR,VARIABLE,NONWIRE WOUND,

0.375" overall width 0.371" overall length

NIIN
010166987
NIIN Date
02/20/76
Schedule B
8533400080 
Name Code
37405
FIIG
A002A0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$22.05 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
Has ESD sensitivity

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

1. 72PM-78-0-255 Cage 73138
2. 3386F-T04-255 Cage 32997
3. 63M-255T604 Cage 02111
4. 72PMR2.5MEG-78C Cage 73138
5. 72PMR2.5 MEG-78B Cage 73138

Major End Users Countries and entities

  • - Department of The Army 
  • - Department of The Navy 
  • - Department of The Air Force 
  • - Poland 
  • - Spain 
  • - Canada 
  • - Republic of Korea 
  • - Greece 
  • - Turkey 

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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
Electrostatic sensitive device (esd) 
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

311-1256-00 / 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.