539D818

539D818 Non Wire Wound Variable Resistor

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Datasheet. 539D818 specification

Section Quantity
The number of individual elements.

2

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

cylindrical servo mounted

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

Pilot Diameter
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.

1.87495in. and 1.8750in.

Pilot Length
The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.

0.0570in. and 0.0670in.

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

2.932in. ⁓2-15/16"

Undercut Diameter

1.87495in. and 1.875in.

Undercut Width

0.0730in.

Body Diameter
The length of a straight line which passes through the center of the body,and terminates at the circumference.

2.025in.

Shaft Diameter
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.

0.250in.

Shaft Length
A measurement of the longest dimension of the shaft,in distinction from width.

0.750in.

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

2.150in.

Overall Diameter
A measurement of the longest straight line across a circular cross-sectional plane.

2.200in. ⁓2-13/64"

Mounting Lip Diameter

1.9900in. and 2.0050in.

Mounting Lip Depth

0.0880in. and 0.0980in.

Shaft Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the shaft.

round

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

ball

Contact Arm Electrical Off Position
The location of the contact arm when there is no electrical continuity between the moving contact and the resistive element.

fully cw

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

single shaft

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.

60.00 INCH-Ounces

Maximum Running Torque
The maximum amount of force requred to maintain actuator movement.

60.00 INCH-Ounces

Maximum Stop Torque
The maximum amount of turning force that can be applied through the operating shaft with0ut damage to the stops.

200.00 INCH-Ounces

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.

0.001in.

Shaft Runout
The eccentricity of the shaft diameter with respect to the rotational axis of the shaft,measured at a specified distance from the end of the shaft,when the body of the item is held fixed and the shaft is rotated with a specified load applied radially to the shaft.

0.001in.

Lateral Runout
The perpendicularity of the mounting surface,with respect to the rotational axis of the shaft,and measured on the mounting surface at a specified distance from the outside edge of the mounting surface,when the shaft is held fixed and the body of the item is rotated with specified loads applied radially and axially to the body of the item.

0.002in.

Pilot Diameter Runout
The eccentricity of the pilot diameter with respect to the rotational axis of the shaft and measured on the pilot diameter when the shaft is held and the body of the item is rotated while a specified load is applied radially to the body.

0.001in.

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.

0.002in.

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

left adjacent side two rows

Mounting Method
The means of attaching the item.

clamp ring

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

10.0 percent, rated amperes c and better industrial clears

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

50.0 percent, rated amperes c and better finish

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

320.0

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.

-500.0/+500.0 all sections

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

0.8 7th secondary pattern

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

1.26 7th secondary finish

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.

-10.0/+10.0 2nd 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 1st section

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

clutch

Test Data Document
The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.

89954-539D818 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
Indicates the type and number of terminals for providing electrical connection.

6 wire lead

Answers.

What quantity is this sold in?

1EA

What is the NSN for 539D818?

5905-00-920-8973

How is this classified for shipping?

Schedule B number: 8533390080
nmfc 062960
Wirewound variable resistors

What's the federal classification of 539D818?

FSC 5905 ⁓ Resistors

Excluding resistance wire.

NSN 5905-00-920-8973 RESISTOR,VARIABLE,WIRE WOUND,NON

2.932" overall length

NIIN
009208973
NIIN Date
01/01/60
Schedule B
8533390080 
Name Code
37406
FIIG
A002A0
Item Weight
2.500lbs
Item Dimensions
--
QUP
Historical Price
$1,200.93 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. 41409A Cage 10112
2. 9603 Cage 04454

Major End Users Countries and entities

  • - Department of The Air Force 
  • - Republic of Korea 

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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

539D818 / Resistor,variable,wire wound,nonWhat 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 of 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, nonwire wound, nonprecision; resistor (1), variable, nonwire wound, precision; and resistor (1), variable, wire wound, precision.