PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8109021Resistor,variable,nonwire Wound,

Us Army Aviation and Missile Command · NSN 5905-00-324-6940 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-324-6940 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-324-6940. Primary manufacturer part number: 8109021.
Features
  • Resistor,variable,nonwire Wound, — FSC 5905
  • Body Length: 0.562 INCHES NOMINAL IN
  • Mounting Bushing Length: 0.500 INCHES NOMINAL IN
  • Power Dissipation Rating Per Section in Watts: 2.25 FREE AIR SINGLE SECTION
  • Ambient Temp in Deg Celsius Per Section at Full Rated Power: 70.0 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
  • Actuator Travel Control Feature: STOPS
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-324-6940, 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 Us Army Aviation and Missile Command. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-324-6940
Primary Part Number8109021
Item NameResistor,variable,nonwire Wound,
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
Body Length0.562 INCHES NOMINAL IN
Mounting Bushing Length0.500 INCHES NOMINAL IN
Power Dissipation Rating Per Section in Watts2.25 FREE AIR SINGLE SECTION
Ambient Temp in Deg Celsius Per Section at Full Rated Power70.0 SINGLE SECTION
Resistance Tolerance Per Section in Percent-10.0 TO 10.0 SINGLE SECTION
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE
Actuator Travel Control FeatureSTOPS
Terminal Type and Quantity3 TAB, SOLDER LUG
Section Quantity1
Shaft Length0.625 INCHES NOMINAL IN
Screw Thread Series DesignatorUNEF
Device Design TypeERR-030 AT 9:00 OCLOCKUNABLE TO DECODE
Nonturn Device Radius0.531 INCHES NOMINAL IN
Rotary Actuator Travel in Angular Deg312.0 NOMINAL
Features ProvidedSHAFT LOCKING DEVICE
Mounting MethodLOCKING BUSHING
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power120.0 SINGLE SECTION
Screw Thread Quantity Per Inch32.0
Electrical Resistance Per Section100.0 OHMS SINGLE SECTION
Screw Thread Diameter0.375 INCHES NOMINAL IN
Resistance Temp Characteristic Range Per Section in Percent+0.0 TO 4.5 -55 DEG CELSIUS SINGLE SECTION AND +0.0 TO 2.5 -25 DEG CELSIUS SINGLE SECTION AND +0.0 TO 1.5 0 DEG CELSIUS SINGLE SECTION AND -1.5 TO 1.5 85 DEG CELSIUS SINGLE SECTION AND +0.0 TO 3.5 120 DEG CELSIUS SINGLE SECTION
Shaft Diameter0.250 INCHES NOMINAL IN
Shaft StyleROUND, SLOTTED
Body Diameter1.062 INCHES NOMINAL IN
Body StyleCYLINDRICAL BUSHING MOUNTED
Reliability IndicatorNOT ESTABLISHED
Effective Electrical Rotation in Deg Angular Rotation312.0 NOMINAL
Actuator TypeSINGLE SHAFT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5905-00-503-5984 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
5330-00-584-1592A042055777 INTERCHANGEABLE
Gasket
Prestolite Electric Inc
6150-01-533-703455777 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Aerovironment, Inc. Dba Aerovironment Inc
5998-01-567-25858109021 INTERCHANGEABLE
Circuit Card Assembly
Southern Research Institute
Cross-Reference Index
Part NumberManufacturer
55777 Raytheon Technical Services Company (USA)
55777 Cae Usa Inc. (USA)
8109021 PRIMARY Us Army Aviation and Missile Command (USA)
JA1L040S101UZ PRIMARY Rockwell Automation, Inc. Dba Rockwell Automation (USA)
JA1L040S101UC PRIMARY Rockwell Automation, Inc. Dba Rockwell Automation (USA)
Related Parts
5905-00-503-5984INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
5330-00-584-1592INTERCHANGEABLE
GASKET
A042055777
6150-01-533-7034INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
55777
5998-01-567-2585INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
8109021

Frequently Asked Questions

What is NSN 5905-00-324-6940?

NSN 5905-00-324-6940 is a Resistor,variable,nonwire Wound,, manufactured by Us Army Aviation and Missile Command, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-324-6940?

NSN 5905-00-324-6940 has 5 cross-referenced part numbers: 55777 (Raytheon Technical Services Company), 55777 (Cae Usa Inc.), 8109021 (Us Army Aviation and Missile Command), JA1L040S101UZ (Rockwell Automation, Inc. Dba Rockwell Automation), JA1L040S101UC (Rockwell Automation, Inc. Dba Rockwell Automation).

What NSN replaces 5905-00-324-6940?

There are 4 known substitutes for 5905-00-324-6940: 5905-00-503-5984, 5330-00-584-1592, 6150-01-533-7034 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8109021?

Key specifications for 8109021: Body Length: 0.562 INCHES NOMINAL IN; Mounting Bushing Length: 0.500 INCHES NOMINAL IN; Power Dissipation Rating Per Section in Watts: 2.25 FREE AIR SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Full Rated Power: 70.0 SINGLE SECTION. 28 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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