PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-500Resistor,variable,wire Wound,pre

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5905-00-632-3550 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-632-3550 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-632-3550. Primary manufacturer part number: 66-500.
Features
  • Resistor,variable,wire Wound,pre — FSC 5905
  • Shaft Length: 0.453 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN
  • Mounting Lip Depth: 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN
  • Body Diameter: 0.875 INCHES MAXIMUM IN
  • Section Quantity: 1
  • Actuator Type: DOUBLE ENDED SHAFT
  • Maximum Starting Torque: 2.00 INCH-OUNCES IN
  • Maximum Running Torque: 2.00 INCH-OUNCES IN
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 5905-00-632-3550, 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 Div Rms - Mitchel Field. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-632-3550
Primary Part Number66-500
Item NameResistor,variable,wire Wound,pre
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Shaft Length0.453 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN
Mounting Lip Depth0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN
Body Diameter0.875 INCHES MAXIMUM IN
Section Quantity1
Actuator TypeDOUBLE ENDED SHAFT
Maximum Starting Torque2.00 INCH-OUNCES IN
Maximum Running Torque2.00 INCH-OUNCES IN
Effective Electrical Rotation in Deg Angular Rotation3600.0 NOMINAL
Shaft Radial Play0.015 INCHES IN
Shaft Runout0.002 INCHES IN
Actuator Travel Control FeatureCLUTCH
Function Conformity Per SectionSINGLE SECTION INDEPENDENT LINEARITY
Power Dissipation Rating Per Section in Watts2.0 FREE AIR SINGLE SECTION
Tap Location From Ccw Terminal Per Section in Ohms41500.0 SINGLE SECTION
Terminal LocationLONGITUDINALLY POSITIONED ON THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Precious Material and LocationTERMINALS GOLD OR TERMINALS SILVER
Fixed Tap Quantity Per Section1 SINGLE SECTION
Precious MaterialGOLD OR SILVER
Terminal Type and Quantity4 TAB, SOLDER LUG
Tap Location Tolerance Per Section-1037.5 TO 1037.5 OHMS SINGLE SECTION
Function Characteristic Per SectionSINGLE SECTION LINEAR
Ambient Temp in Deg Celsius Per Section at Full Rated Power40.0 SINGLE SECTION
Pilot Length0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN
Rotary Actuator Travel in Angular Deg3600.0 NOMINAL
Overall Diameter0.875 INCHES MAXIMUM IN
Mounting MethodCLAMP RING(S)
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power125.0 SINGLE SECTION
Resistance Tolerance Per Section in Percent-2.5 TO 2.5 SINGLE SECTION
Electrical Resistance Per Section83.0 KILOHMS SINGLE SECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3540-00-234-674266500 INTERCHANGEABLE
Sealer,steel Strapping,hand
Shipping Room Products Inc
4310-01-032-1511 INTERCHANGEABLE
Parts Kit,compressor
6520-01-337-532266500 INTERCHANGEABLE
Starter Assembly
Air Techniques, Inc.
5998-01-501-04597011-1541-300 INTERCHANGEABLE
Circuit Card Assembly
Viavi Solutionsllc
6150-01-649-537566500 INTERCHANGEABLE
Cable Assembly,ribbon,electrical
Generac Mobile Products, Llc
Cross-Reference Index
Part NumberManufacturer
66-500 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
66-500 Vishay Sprague Inc (USA)
66-500 Bunker Ramo Corp Amphenol Controls Div (USA)
66-500 Sensor Systems, L.l.c. Dba Sensor Systems Llc (USA)
Related Parts
3540-00-234-6742INTERCHANGEABLE
SEALER,STEEL STRAPPING,HAND
66500
4310-01-032-1511INTERCHANGEABLE
PARTS KIT,COMPRESSOR
6520-01-337-5322INTERCHANGEABLE
STARTER ASSEMBLY
66500
5998-01-501-0459INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
7011-1541-300
6150-01-649-5375INTERCHANGEABLE
CABLE ASSEMBLY,RIBBON,ELECTRICAL
66500

Frequently Asked Questions

What is NSN 5905-00-632-3550?

NSN 5905-00-632-3550 is a Resistor,variable,wire Wound,pre, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-632-3550?

NSN 5905-00-632-3550 has 4 cross-referenced part numbers: 66-500 (Lockheed Martin Corporation Div Rms - Mitchel Field), 66-500 (Vishay Sprague Inc), 66-500 (Bunker Ramo Corp Amphenol Controls Div), 66-500 (Sensor Systems, L.l.c. Dba Sensor Systems Llc).

What NSN replaces 5905-00-632-3550?

There are 5 known substitutes for 5905-00-632-3550: 3540-00-234-6742, 4310-01-032-1511, 6520-01-337-5322 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-500?

Key specifications for 66-500: Shaft Length: 0.453 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN; Mounting Lip Depth: 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN; Body Diameter: 0.875 INCHES MAXIMUM IN; Section Quantity: 1. 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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