PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300-66H500Resistor,variable,wire Wound,non

Lockheed Martin Corp · NSN 5905-00-824-6900 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-824-6900 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-824-6900. Primary manufacturer part number: 300-66H500.
Features
  • Resistor,variable,wire Wound,non — FSC 5905
  • Electrical Resistance Per Section: 500.0 OHMS SINGLE SECTION
  • Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION
  • Body Height: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
  • Body Width: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
  • Rotary Actuator Travel in Angular Deg: 16200.0 NOMINAL
  • Ambient Temp in Deg Celsius Per Section at Full Rated Power: 50.0 SINGLE SECTION
  • Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius: -50.0 TO 50.0 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 5905-00-824-6900, 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 Corp. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5905-00-824-6900
Primary Part Number300-66H500
Item NameResistor,variable,wire Wound,non
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusCANCELLED
Electrical Resistance Per Section500.0 OHMS SINGLE SECTION
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power125.0 SINGLE SECTION
Body Height0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
Body Width0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
Rotary Actuator Travel in Angular Deg16200.0 NOMINAL
Ambient Temp in Deg Celsius Per Section at Full Rated Power50.0 SINGLE SECTION
Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius-50.0 TO 50.0 SINGLE SECTION
Terminal LocationREAR END LOCATION NOT OTHERWISE SPECIFIED
Terminal Type and Quantity3 WIRE LEAD
Power Dissipation Rating Per Section in Watts1.0 FREE AIR SINGLE SECTION
Actuator Travel Control FeatureSTOPS
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 SINGLE SECTION
Shaft StyleROUND, SLOTTED
Mounting MethodUNTHREADED HOLE(S)
Shaft Diameter0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
Effective Electrical Rotation in Deg Angular Rotation15876.0 NOMINAL
Section Quantity1
Lateral Distance Between Mounting Hole Centers0.515 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN
Body StyleRECTANGULAR W/MOUNTING HOLES
Mounting Facility Quantity2
Body Length0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
Actuator TypeSINGLE SHAFT
Reliability IndicatorNOT ESTABLISHED
Mounting Hole Diameter0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
Shaft Length0.030 INCHES MAXIMUM IN
Maximum Starting Torque7.50 INCH-OUNCES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5905-00-106-1273 INTERCHANGEABLE
Resistor,fixed,composition
5996-01-139-2843A81-105 INTERCHANGEABLE
Amplifier,audio Frequency
Andrea Systems Llc
Cross-Reference Index
Part NumberManufacturer
300-66H500 Lockheed Martin Corp (USA)
106-212-0065 Meggitt (new Hampshire), Inc (USA)
300-00H500 Lockheed Martin Corp (USA)
300-00H500 Vamistor/weston Div of Vamistor Corp of Tennessee Inc (USA)
A8178 Autodyne Manufacturing Co Inc (USA)
300-66H500 Vamistor/weston Div of Vamistor Corp of Tennessee Inc (USA)
8976037-106 Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories (USA)
5905PL0306919 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5905-00-106-1273INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5996-01-139-2843INTERCHANGEABLE
AMPLIFIER,AUDIO FREQUENCY
A81-105

Frequently Asked Questions

What is NSN 5905-00-824-6900?

NSN 5905-00-824-6900 is a Resistor,variable,wire Wound,non, manufactured by Lockheed Martin Corp, classified under FSC 5905 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5905-00-824-6900?

NSN 5905-00-824-6900 has 8 cross-referenced part numbers: 300-66H500 (Lockheed Martin Corp), 106-212-0065 (Meggitt (new Hampshire), Inc), 300-00H500 (Lockheed Martin Corp), 300-00H500 (Vamistor/weston Div of Vamistor Corp of Tennessee Inc), A8178 (Autodyne Manufacturing Co Inc) and 3 more.

What NSN replaces 5905-00-824-6900?

There are 2 known substitutes for 5905-00-824-6900: 5905-00-106-1273, 5996-01-139-2843. Verify interchangeability with system specifications before substitution.

What are the specifications of 300-66H500?

Key specifications for 300-66H500: Electrical Resistance Per Section: 500.0 OHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION; Body Height: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN; Body Width: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN. 29 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5905-00-824-6900 still in active supply?

NSN 5905-00-824-6900 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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