Nonwire Wound Variable Resistor

FM253A

FM253A
(NSN) National Stock Number
5905-00-042-9349
Federal Supply Classification
5905 Resistor
Item Name Code
37405
Schedule B Code
8533400080
Summary

1 section quantity, cylindrical body style, not established reliability indicator, 0.500 inches maximum body diameter, 0.531 inches nominal body length, flush drive with slot-hole actuator type

DAC HCC DMIL RNCC
3 - - 5
RNVC SADC MSDS RNAAC
9 - - TX
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 or 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, wire wound, nonprecision; resistor (1), variable, nonwire wound precision; and resistor (1), variable, wire wound, precision.

INC FIIG Concept Condition
37405 A002A0 1 1
Specifications
Section Quantity
1
Details The number of individual elements.
Body Style
cylindrical
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.
Body Diameter
0.500 inches maximum
Details The length of a straight line which passes through the center of the body,and terminates at the circumference.
Body Length
0.531 inches nominal
Details A measurement of the longest dimension of the body,in distinction from width.
Actuator Type
flush drive with slot-hole
Details Indicates the type of facility or arrangement provided for moving the variable contact(s).
Effective Electrical Rotation In Deg Angular Rotation
295.0 nominal
Details That part of the total rotational travel of the actuator that produces a change in output,expressed in degree angular rotation.
Mounting Method
terminal
Details The means of attaching the item.
Electrical Resistance Per Section
25.0 kilohms single section
Details A measure of the opposition to the flow of direct or alternating current per section.
Rotary Actuator Travel In Angular Deg
295.0 nominal
Details The measurement of the rotary mechanical motion of the actuating shaft of an item,expressed in degrees.
Resistance Temp Characteristic Range Per Section In Percent
+0.0 to 7.0 -55 deg celsius single section and +0.0 to 3.5 -25 deg celsius single section and -2.5 to 2.5 85 deg celsius single section and +0.0 to 5.5 120 deg celsius single section
Details The change in total resistance over a specified temperature range per section,expressed as a percent of the total resistance at a specified reference temperature.
Ambient Temp In Deg Celsius Per Section At Zero Percent Rated Power
120.0 single section
Details The ambient temperature at which the power dissipation of each section is derated to zero percent of the full rated power.
Terminal Location
rear end
Details Indicates the location of the terminal/s/ on the item.
Power Dissipation Rating Per Section In Watts
0.25 free air single section
Details The maximum amount of electrical energy that can be expended per section,expressed in watts.
Resistance Tolerance Per Section In Percent
-10.0 to 10.0 single section
Details The limits of permissible variation in the electrical resistance value per section of an item from its rated value,expressed in percent.
Actuator Travel Control Feature
stops
Details The feature that controls the actuator travel.
Ambient Temp In Deg Celsius Per Section At Full Rated Power
70.0 single section
Details The ambient temperature,expressed in degrees celsius,of the medium surrounding each section at which it can be operated continuously at full rated power.
Special Features
tuneable by screwdriver slot
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Terminal Type And Quantity
3 tab, solder lug
Details Indicates the type and number of terminals for providing electrical connection.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
L240726-36 06845 1 - 3 2 - TX
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
35140 - P -
RVC WCC TCC SHC
- 658 Z 9
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What's Included?

  • Certificate of Conformity
  • QC Inspection prior to shipping
  • On time delivery
  • Friendly service to back every order
Manufacturer
ROCKWELL AUTOMATION, INC.
CAGE: 01121
MILWAUKEE , WI , 53204-2410
UNITED STATES
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FAQs
Frequently asked questions for NSN 5905-00-042-9349
What is the NIIN of the NSN 5905-00-042-9349?
The National Item Identification Number (NIIN) of the NSN 5905-00-042-9349 is 00-042-9349
When the NSN 5905-00-042-9349 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Sun, Jan 1, 1961
Does the NSN 5905-00-042-9349 contain any precious metals?
Type/content is unknown
Does the NSN 5905-00-042-9349 contain any hazardous material?
No data in HMIRS

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