Non Wire Wound Variable Resistor

1800-1009-1

(NSN) National Stock Number

5905-00-231-3859

Federal Supply Classification

5905 Resistor

Item Name Code

37406

Schedule B Code

8533390080

Summary

7 section quantity, cylindrical servo mounted body style, not established reliability indicator, 2.8750 inches nominal pilot diameter, 0.0620 inches nominal pilot length, 2.875 inches nominal undercut diameter

DAC	HCC	DMIL	RNCC
5	-	-	5

RNVC	SADC	MSDS	RNAAC
2	-	-	ZZ

Identification

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, and the like, 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.

INC	FIIG	Concept	Condition
37406	A002A0	1	1

Specifications

Section Quantity

Details

The number of individual elements.

Body Style

cylindrical servo mounted

Details

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

Reliability Indicator

not established

Details

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.

Pilot Diameter

2.8750 inches nominal

Details

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

Pilot Length

0.0620 inches nominal

Details

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

Undercut Diameter

2.875 inches nominal

Details

None.

Undercut Width

0.0730 inches nominal

Details

None.

Body Diameter

3.031 inches nominal

Details

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

Shaft Diameter

0.250 inches nominal

Details

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

Shaft Length

0.750 inches nominal

Details

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

Body Length

4.500 inches nominal

Details

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

Mounting Lip Diameter

3.0000 inches nominal

Details

None.

Mounting Lip Depth

0.0930 inches nominal

Details

None.

Shaft Style

round, slotted

Details

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

Shaft Bearing Type

bearing

Details

Indicates the type of shaft bearing/s/ furnished.

Actuator Type

dual concentric

Details

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

Effective Electrical Rotation In Deg Angular Rotation

358.0 nominal

Details

That part of the total rotational travel of the actuator that produces a change in output,expressed in degree angular rotation.

Maximum Starting Torque

5.90 inch-ounces

Details

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

Maximum Running Torque

3.60 inch-ounces

Details

The maximum amount of force requred to maintain actuator movement.

Shaft End Play

0.0025 inches

Details

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.

Shaft Runout

0.001 inches

Details

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.

Terminal Location

radially positioned over less than half the circumference

Details

The position of the terminal/s/ for making connection to an item.please use mrc cqtm in place of this discontinued mrc.

Mounting Method

clamp ring

Details

The means of attaching the item.

Features Provided

nonmetallic shaft

Details

Those features,not otherwise specified,which may be required for proper functioning of the item.

Electrical Resistance Per Section

5.0 kilohms all sections

Details

A measure of the opposition to the flow of direct or alternating current per section.

Rotary Actuator Travel In Angular Deg

360.0 nominal

Details

The measurement of the rotary mechanical motion of the actuating shaft of an item,expressed in degrees.

Ambient Temp In Deg Celsius Per Section At Zero Percent Rated Power

125.0 all sections

Details

The ambient temperature at which the power dissipation of each section is derated to zero percent of the full rated power.

Temp Coefficient Of Resistance Per Section In Ppm Per Deg Celsius

-150.0 to 150.0 all sections

Details

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.

Power Dissipation Rating Per Section In Watts

2.0 free air all sections

Details

The maximum amount of electrical energy that can be expended per section,expressed in watts.