PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

503408-19Resistor,variable,wire Wound,non

Instruments and Flight Research, Inc. · NSN 5905-00-502-4234 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-502-4234 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-502-4234. Primary manufacturer part number: 503408-19.
Features
  • Resistor,variable,wire Wound,non — FSC 5905
  • Shaft Style: ROUND
  • Features Provided: NONMETALLIC SHAFT
  • Overall Diameter: 1.938 INCHES NOMINAL IN
  • Nonturn Device Radius: 0.531 INCHES NOMINAL IN
  • Screw Thread Diameter: 0.375 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Nonturn Device Location: AT 9 OCLOCK
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 5905-00-502-4234, 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 Instruments and Flight Research, Inc.. 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-502-4234
Primary Part Number503408-19
Item NameResistor,variable,wire Wound,non
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerInstruments and Flight Research, Inc.
StatusACTIVE
Shaft StyleROUND
Features ProvidedNONMETALLIC SHAFT
Overall Diameter1.938 INCHES NOMINAL IN
Nonturn Device Radius0.531 INCHES NOMINAL IN
Screw Thread Diameter0.375 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Nonturn Device LocationAT 9 OCLOCK
Mounting MethodSTANDARD BUSHING
Rotary Actuator Travel in Angular Deg300.0 NOMINAL
Function Conformity Per SectionSINGLE SECTION INDEPENDENT LINEARITY
Terminal Type and Quantity3 TAB, SOLDER LUG
Ambient Temp in Deg Celsius Per Section at Full Rated Power40.0 SINGLE SECTION
Electrical Resistance Per Section50.000 KILOHMS SINGLE SECTION
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Actuator Travel Control FeatureSTOPS
Function Characteristic Per SectionSINGLE SECTION LINEAR
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 SINGLE SECTION
Function Conformity Tolerance Per Section-0.50 TO 0.50 SINGLE SECTION
Power Dissipation Rating Per Section in Watts3.0 FREE AIR SINGLE SECTION
Body Diameter1.672 INCHES NOMINAL IN
Shaft Length2.187 INCHES NOMINAL IN
Maximum Starting Torque2.00 INCH-OUNCES IN
Effective Electrical Rotation in Deg Angular Rotation280.0 NOMINAL
Mounting Bushing Length0.375 INCHES NOMINAL IN
Shaft Diameter0.250 INCHES NOMINAL IN
Body Length0.781 INCHES NOMINAL IN
Section Quantity1
Screw Thread Quantity Per Inch32.0
Maximum Running Torque1.50 INCH-OUNCES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5905-00-624-95927604741 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5940-00-939-5631D-50 INTERCHANGEABLE
Terminal,lug
Dossert Corp
6105-01-109-0035L400 INTERCHANGEABLE
Motor,electric
Bear Hydraulics Inc
7690-01-247-7184L400 INTERCHANGEABLE
Marker Set,identification
American Labelmark Company Div Labelmaster
Cross-Reference Index
Part NumberManufacturer
503408-19 PRIMARY Instruments and Flight Research, Inc. (USA)
L400 Ideal Precision Meter Co Dba Ideal Precision Meter Co (USA)
520064-19 Curtiss-Wright Corp (USA)
Related Parts
5905-00-624-9592INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
7604741
5940-00-939-5631INTERCHANGEABLE
TERMINAL,LUG
D-50
6105-01-109-0035INTERCHANGEABLE
MOTOR,ELECTRIC
L400
7690-01-247-7184INTERCHANGEABLE
MARKER SET,IDENTIFICATION
L400

Frequently Asked Questions

What is NSN 5905-00-502-4234?

NSN 5905-00-502-4234 is a Resistor,variable,wire Wound,non, manufactured by Instruments and Flight Research, Inc., classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-502-4234?

NSN 5905-00-502-4234 has 3 cross-referenced part numbers: 503408-19 (Instruments and Flight Research, Inc.), L400 (Ideal Precision Meter Co Dba Ideal Precision Meter Co), 520064-19 (Curtiss-Wright Corp).

What NSN replaces 5905-00-502-4234?

There are 4 known substitutes for 5905-00-502-4234: 5905-00-624-9592, 5940-00-939-5631, 6105-01-109-0035 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 503408-19?

Key specifications for 503408-19: Shaft Style: ROUND; Features Provided: NONMETALLIC SHAFT; Overall Diameter: 1.938 INCHES NOMINAL IN; Nonturn Device Radius: 0.531 INCHES NOMINAL IN. 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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