PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L1AResistor,variable,wire Wound,pre

Vamistor/weston Div of Vamistor Corp of Tennessee Inc · NSN 5905-00-295-4042 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-295-4042 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-295-4042. Primary manufacturer part number: L1A.
Features
  • Resistor,variable,wire Wound,pre — FSC 5905
  • Body Length: 1.015 INCHES NOMINAL IN
  • Shaft Diameter: 0.250 INCHES NOMINAL IN
  • Section Quantity: 1
  • Effective Electrical Rotation in Deg Angular Rotation: 3600.0 NOMINAL
  • Mounting Bushing Length: 0.219 INCHES NOMINAL IN
  • Electrical Resistance Per Section: 50.0 KILOHMS SINGLE SECTION
  • Mounting Method: STANDARD BUSHING
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-295-4042, 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 Vamistor/weston Div of Vamistor Corp of Tennessee Inc. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-295-4042
Primary Part NumberL1A
Item NameResistor,variable,wire Wound,pre
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerVamistor/weston Div of Vamistor Corp of Tennessee Inc
StatusACTIVE
Body Length1.015 INCHES NOMINAL IN
Shaft Diameter0.250 INCHES NOMINAL IN
Section Quantity1
Effective Electrical Rotation in Deg Angular Rotation3600.0 NOMINAL
Mounting Bushing Length0.219 INCHES NOMINAL IN
Electrical Resistance Per Section50.0 KILOHMS SINGLE SECTION
Mounting MethodSTANDARD BUSHING
Function Conformity Tolerance Per Section-0.10 TO 0.10 SINGLE SECTION
Rotary Actuator Travel in Angular Deg3600.0 NOMINAL
Function Conformity Per SectionSINGLE SECTION INDEPENDENT LINEARITY
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power140.0 SINGLE SECTION
Function Characteristic Per SectionSINGLE SECTION LINEAR
Ambient Temp in Deg Celsius Per Section at Full Rated Power40.0 SINGLE SECTION
Terminal Type and Quantity3 SOLDER STUD
Terminal LocationREAR END LOCATION NOT OTHERWISE SPECIFIED
Resistance Tolerance Per Section in Percent-2.0 TO 2.0 SINGLE SECTION
Power Dissipation Rating Per Section in Watts4.0 FREE AIR SINGLE SECTION
Actuator Travel Control FeatureSTOPS
Shaft Length0.500 INCHES NOMINAL IN
Maximum Running Torque1.00 INCH-OUNCES IN
Body StyleCYLINDRICAL BUSHING MOUNTED
Screw Thread Quantity Per Inch32.0
Actuator TypeSINGLE SHAFT
Reliability IndicatorNOT ESTABLISHED
Shaft StyleROUND
Body Diameter0.550 INCHES NOMINAL IN
Screw Thread Series DesignatorUNEF
Screw Thread Diameter0.375 INCHES NOMINAL IN
Maximum Starting Torque2.00 INCH-OUNCES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-143-8609CH500 INTERCHANGEABLE
Coil,radio Frequency
Pax Mfg Corp Hammarlund Mfg Co Div
6625-00-348-5793SM-D-700695 INTERCHANGEABLE
Test Set,electrical Power
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-00-919-1672 INTERCHANGEABLE
Test Set,electrical Power
4820-01-170-5325 INTERCHANGEABLE
Valve,regulating,fluid Pressure
6210-01-310-4896L-1A INTERCHANGEABLE
Fixture,lighting
Van Keuren
6230-01-591-1145L1A INTERCHANGEABLE
Flashlight
Viking International Protection
1010-01-611-3465L1AB INTERCHANGEABLE
Sling,small Arms
Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc
Cross-Reference Index
Part NumberManufacturer
L1A Vamistor/weston Div of Vamistor Corp of Tennessee Inc (USA)
L1A Lockheed Martin Corp (USA)
Related Parts
5950-00-143-8609INTERCHANGEABLE
COIL,RADIO FREQUENCY
CH500
6625-00-348-5793INTERCHANGEABLE
TEST SET,ELECTRICAL POWER
SM-D-700695
6625-00-919-1672INTERCHANGEABLE
TEST SET,ELECTRICAL POWER
4820-01-170-5325INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
6210-01-310-4896INTERCHANGEABLE
FIXTURE,LIGHTING
L-1A
6230-01-591-1145INTERCHANGEABLE
FLASHLIGHT
L1A
1010-01-611-3465INTERCHANGEABLE
SLING,SMALL ARMS
L1AB

Frequently Asked Questions

What is NSN 5905-00-295-4042?

NSN 5905-00-295-4042 is a Resistor,variable,wire Wound,pre, manufactured by Vamistor/weston Div of Vamistor Corp of Tennessee Inc, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-295-4042?

NSN 5905-00-295-4042 has 2 cross-referenced part numbers: L1A (Vamistor/weston Div of Vamistor Corp of Tennessee Inc), L1A (Lockheed Martin Corp).

What NSN replaces 5905-00-295-4042?

There are 7 known substitutes for 5905-00-295-4042: 5950-00-143-8609, 6625-00-348-5793, 6625-00-919-1672 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L1A?

Key specifications for L1A: Body Length: 1.015 INCHES NOMINAL IN; Shaft Diameter: 0.250 INCHES NOMINAL IN; Section Quantity: 1; Effective Electrical Rotation in Deg Angular Rotation: 3600.0 NOMINAL. 30 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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