PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A43-20RKAB3R300Resistor,variable,wire Wound,non

Clarostat Sensors and Controls · NSN 5905-00-985-3863 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-985-3863 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-985-3863. Primary manufacturer part number: A43-20RKAB3R300.
Features
  • Resistor,variable,wire Wound,non — FSC 5905
  • Actuator Type: SINGLE SHAFT
  • Body Length: 0.562 INCHES NOMINAL IN
  • Shaft Style: ROUND
  • Temp Coefficient of Resistance Wire Per Section in Ppm Per Deg Celsius: -400.0 TO 400.0 SINGLE SECTION
  • Resistance Tolerance Per Section in Percent: -10.0 TO 10.0 SINGLE SECTION
  • Terminal Location: RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
  • Ambient Temp in Deg Celsius Per Section at Full Rated Power: 40.0 SINGLE SECTION
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-985-3863, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Clarostat Sensors and Controls. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-985-3863
Primary Part NumberA43-20RKAB3R300
Item NameResistor,variable,wire Wound,non
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerClarostat Sensors and Controls
StatusACTIVE
Actuator TypeSINGLE SHAFT
Body Length0.562 INCHES NOMINAL IN
Shaft StyleROUND
Temp Coefficient of Resistance Wire Per Section in Ppm Per Deg Celsius-400.0 TO 400.0 SINGLE SECTION
Resistance Tolerance Per Section in Percent-10.0 TO 10.0 SINGLE SECTION
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Ambient Temp in Deg Celsius Per Section at Full Rated Power40.0 SINGLE SECTION
Power Dissipation Rating Per Section in Watts2.0 FREE AIR SINGLE SECTION
Terminal Type and Quantity3 TAB, SOLDER LUG
Rotary Actuator Travel in Angular Deg300.0 NOMINAL
Actuator Travel Control FeatureSTOPS
Body Diameter1.125 INCHES NOMINAL IN
Body StyleCYLINDRICAL BUSHING MOUNTED
Effective Electrical Rotation in Deg Angular Rotation280.0 NOMINAL
Shaft Length3.000 INCHES NOMINAL IN
Mounting Bushing Length0.500 INCHES NOMINAL IN
Section Quantity1
Screw Thread Diameter0.375 INCHES NOMINAL IN
Mounting MethodSTANDARD BUSHING
Screw Thread Quantity Per Inch32.0
Screw Thread Series DesignatorUNEF
Shaft Diameter0.187 INCHES NOMINAL IN
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power105.0 SINGLE SECTION
Reliability IndicatorNOT ESTABLISHED
Electrical Resistance Per Section20.0 OHMS SINGLE SECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-01-003-2216SG7818K/883B INTERCHANGEABLE
Microcircuit,linear
Microsemi Corp Analog Mixed Signal Group
Cross-Reference Index
Part NumberManufacturer
A43-20 Clarostat Sensors and Controls (USA)
A43-20RKAB3R300 PRIMARY Clarostat Sensors and Controls (USA)
Related Parts
5962-01-003-2216INTERCHANGEABLE
MICROCIRCUIT,LINEAR
SG7818K/883B

Frequently Asked Questions

What is NSN 5905-00-985-3863?

NSN 5905-00-985-3863 is a Resistor,variable,wire Wound,non, manufactured by Clarostat Sensors and Controls, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-985-3863?

NSN 5905-00-985-3863 has 2 cross-referenced part numbers: A43-20 (Clarostat Sensors and Controls), A43-20RKAB3R300 (Clarostat Sensors and Controls).

What NSN replaces 5905-00-985-3863?

There is 1 known substitute for 5905-00-985-3863: 5962-01-003-2216. Verify interchangeability with system specifications before substitution.

What are the specifications of A43-20RKAB3R300?

Key specifications for A43-20RKAB3R300: Actuator Type: SINGLE SHAFT; Body Length: 0.562 INCHES NOMINAL IN; Shaft Style: ROUND; Temp Coefficient of Resistance Wire Per Section in Ppm Per Deg Celsius: -400.0 TO 400.0 SINGLE SECTION. 25 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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