PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RA20NASA502AResistor,variable,wire Wound,non

Rockwell Automation, Inc. Dba Rockwell Automation · NSN 5905-00-108-5588 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-108-5588 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-108-5588. Primary manufacturer part number: RA20NASA502A.
Features
  • Resistor,variable,wire Wound,non — FSC 5905
  • Terminal Type and Quantity: 3 TAB, SOLDER LUG
  • Test Data Document: 81349-MIL-R-19 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Body Length: 0.625 INCHES NOMINAL IN
  • Screw Thread Series Designator: UNEF
  • Shaft Length: 0.500 INCHES NOMINAL IN
  • Nonturn Device Location: AT 9 OCLOCK
  • Shaft Diameter: 0.250 INCHES NOMINAL IN
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 5905-00-108-5588, 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 Rockwell Automation, Inc. Dba Rockwell Automation. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-108-5588
Primary Part NumberRA20NASA502A
Item NameResistor,variable,wire Wound,non
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerRockwell Automation, Inc. Dba Rockwell Automation
StatusACTIVE
Terminal Type and Quantity3 TAB, SOLDER LUG
Test Data Document81349-MIL-R-19 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Body Length0.625 INCHES NOMINAL IN
Screw Thread Series DesignatorUNEF
Shaft Length0.500 INCHES NOMINAL IN
Nonturn Device LocationAT 9 OCLOCK
Shaft Diameter0.250 INCHES NOMINAL IN
Mounting Bushing Length0.375 INCHES NOMINAL IN
Screw Thread Diameter0.375 INCHES NOMINAL IN
Actuator TypeSINGLE SHAFT
Body Diameter1.280 INCHES NOMINAL IN
Power Dissipation Rating Per Section in Watts2.0 FREE AIR SINGLE SECTION
Mounting MethodSTANDARD BUSHING
Screw Thread Quantity Per Inch32.0
Nonturn Device Radius0.531 INCHES NOMINAL IN
Shaft StyleROUND, SLOTTED
Resistance Tolerance Per Section in Percent-10.0 TO 10.0 SINGLE SECTION
Section Quantity1
Body StyleCYLINDRICAL BUSHING MOUNTED
Electrical Resistance Per Section5.000 KILOHMS SINGLE SECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5905-00-581-1406 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Cross-Reference Index
Part NumberManufacturer
RA20NASA502A Rockwell Automation, Inc. Dba Rockwell Automation (USA)
JANR19TYPERA20A1SA502AK Joint Electronics Type Designation System (USA)
RA20A1SA502AK Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
JANR19 Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
2R72P64 General Electric Company (USA)
252-5000K2W1-25 Cts Corp of California Dba Cts Electronics Corp Paso Robles Div Electromechanical Group (USA)
Related Parts
5905-00-581-1406INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON

Frequently Asked Questions

What is NSN 5905-00-108-5588?

NSN 5905-00-108-5588 is a Resistor,variable,wire Wound,non, manufactured by Rockwell Automation, Inc. Dba Rockwell Automation, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-108-5588?

NSN 5905-00-108-5588 has 6 cross-referenced part numbers: RA20NASA502A (Rockwell Automation, Inc. Dba Rockwell Automation), JANR19TYPERA20A1SA502AK (Joint Electronics Type Designation System), RA20A1SA502AK (Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), JANR19 (Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 2R72P64 (General Electric Company) and 1 more.

What NSN replaces 5905-00-108-5588?

There is 1 known substitute for 5905-00-108-5588: 5905-00-581-1406. Verify interchangeability with system specifications before substitution.

What are the specifications of RA20NASA502A?

Key specifications for RA20NASA502A: Terminal Type and Quantity: 3 TAB, SOLDER LUG; Test Data Document: 81349-MIL-R-19 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Body Length: 0.625 INCHES NOMINAL IN; Screw Thread Series Designator: UNEF. 20 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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