PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B456040-4Resistor,variable,wire Wound,non

Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin · NSN 5905-00-258-2575 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-258-2575 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-258-2575. Primary manufacturer part number: B456040-4.
Features
  • Resistor,variable,wire Wound,non — FSC 5905
  • Flat Height: 0.216 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Body Style: CYLINDRICAL BUSHING MOUNTED
  • Screw Thread Diameter: 0.375 INCHES NOMINAL IN
  • Mounting Method: STANDARD BUSHING
  • Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 105.0 SINGLE SECTION
  • Features Provided: NONMETALLIC SHAFT
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 5905-00-258-2575, 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 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-258-2575
Primary Part NumberB456040-4
Item NameResistor,variable,wire Wound,non
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin
StatusACTIVE
Flat Height0.216 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Body StyleCYLINDRICAL BUSHING MOUNTED
Screw Thread Diameter0.375 INCHES NOMINAL IN
Mounting MethodSTANDARD BUSHING
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power105.0 SINGLE SECTION
Features ProvidedNONMETALLIC SHAFT
Actuator Travel Control FeatureSTOPS
Ambient Temp in Deg Celsius Per Section at Full Rated Power40.0 SINGLE SECTION
Terminal Type and Quantity3 TAB, SOLDER LUG
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 SINGLE SECTION
Power Dissipation Rating Per Section in Watts2.0 FREE AIR SINGLE SECTION
Nonturn Device Radius0.531 INCHES NOMINAL IN
Shaft Length0.688 INCHES NOMINAL IN
Actuator TypeSINGLE SHAFT
Screw Thread Series DesignatorUNEF
Screw Thread Quantity Per Inch32.0
Shaft Diameter0.250 INCHES NOMINAL IN
Nonturn Device LocationAT 3 OCLOCK AND AT 9 OCLOCK
Body Diameter1.125 INCHES NOMINAL IN
Effective Electrical Rotation in Deg Angular Rotation280.0 NOMINAL
First Flat Length0.438 INCHES NOMINAL IN
Shaft StyleROUND, FLATTED
Electrical Resistance Per Section125.0 OHMS SINGLE SECTION
Mounting Bushing Length0.250 INCHES NOMINAL IN
Body Length0.562 INCHES NOMINAL IN
Rotary Actuator Travel in Angular Deg300.0 NOMINAL
Section Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-142-435743125 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5940-00-197-8751 INTERCHANGEABLE
Terminal,lug
4820-00-334-386543125 INTERCHANGEABLE
Disk,valve
Spirax Sarco Inc Dba Spirax Sarco
5950-00-506-0350310-13773-01 INTERCHANGEABLE
Transformer,power Autotransforme
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
3010-01-091-22833-B-21 INTERCHANGEABLE
Insert,flexible Coupling
Charles Bond Company Dba Christiana Machine Company
6640-01-468-711643125 INTERCHANGEABLE
Analytical Column
Dionex Corporation
Cross-Reference Index
Part NumberManufacturer
B456040-4 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
43-125 Clarostat Sensors and Controls (USA)
B456040-4 Rca Corp Distributor and Special Products Div
Related Parts
3110-00-142-4357INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
43125
5940-00-197-8751INTERCHANGEABLE
TERMINAL,LUG
4820-00-334-3865INTERCHANGEABLE
DISK,VALVE
43125
5950-00-506-0350INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
310-13773-01
3010-01-091-2283INTERCHANGEABLE
INSERT,FLEXIBLE COUPLING
3-B-21
6640-01-468-7116INTERCHANGEABLE
ANALYTICAL COLUMN
43125

Frequently Asked Questions

What is NSN 5905-00-258-2575?

NSN 5905-00-258-2575 is a Resistor,variable,wire Wound,non, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-258-2575?

NSN 5905-00-258-2575 has 3 cross-referenced part numbers: B456040-4 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 43-125 (Clarostat Sensors and Controls), B456040-4 (Rca Corp Distributor and Special Products Div).

What NSN replaces 5905-00-258-2575?

There are 6 known substitutes for 5905-00-258-2575: 3110-00-142-4357, 5940-00-197-8751, 4820-00-334-3865 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B456040-4?

Key specifications for B456040-4: Flat Height: 0.216 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED; Body Style: CYLINDRICAL BUSHING MOUNTED; Screw Thread Diameter: 0.375 INCHES NOMINAL IN. 29 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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