PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

04-997Resistor,variable,wire Wound,non

Ampex Systems Corp · NSN 5905-01-073-9970 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-01-073-9970 — this item is cataloged by the U.S. Government under National Stock Number 5905-01-073-9970. Primary manufacturer part number: 04-997.
Features
  • Resistor,variable,wire Wound,non — FSC 5905
  • Mounting Bushing Length: 0.250 INCHES NOMINAL IN
  • Features Provided: HUMIDITY PROOF
  • Screw Thread Quantity Per Inch: 32.0
  • Power Dissipation Rating Per Section in Watts: 5.0 FREE AIR SINGLE SECTION
  • Terminal Type and Quantity: 3 TAB, SOLDER LUG
  • Ambient Temp in Deg Celsius Per Section at Full Rated Power: 55.0 SINGLE SECTION
  • Terminal Location: REAR END LOCATION NOT OTHERWISE SPECIFIED
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 5905-01-073-9970, 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 Ampex Systems Corp. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-01-073-9970
Primary Part Number04-997
Item NameResistor,variable,wire Wound,non
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerAmpex Systems Corp
StatusACTIVE
Mounting Bushing Length0.250 INCHES NOMINAL IN
Features ProvidedHUMIDITY PROOF
Screw Thread Quantity Per Inch32.0
Power Dissipation Rating Per Section in Watts5.0 FREE AIR SINGLE SECTION
Terminal Type and Quantity3 TAB, SOLDER LUG
Ambient Temp in Deg Celsius Per Section at Full Rated Power55.0 SINGLE SECTION
Terminal LocationREAR END LOCATION NOT OTHERWISE SPECIFIED
Electrical Resistance Per Section9.970 KILOHMS SINGLE SECTION
Mounting MethodSTANDARD BUSHING
Rotary Actuator Travel in Angular Deg9000.0 NOMINAL
Body Length6.750 INCHES NOMINAL IN
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 SINGLE SECTION
Nonturn Device LocationAT 9 OCLOCK
Body StyleCYLINDRICAL BUSHING MOUNTED
Shaft Diameter0.250 INCHES NOMINAL IN
Effective Electrical Rotation in Deg Angular Rotation9000.0 NOMINAL
Reliability IndicatorNOT ESTABLISHED
Body Diameter5.125 INCHES NOMINAL IN
Shaft Length0.375 INCHES NOMINAL IN
Screw Thread Series DesignatorUNEF
Shaft StyleROUND
Nonturn Device Radius0.531 INCHES NOMINAL IN
Section Quantity1
Actuator TypeSINGLE SHAFT
Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius-25.0 TO 25.0 SINGLE SECTION
Screw Thread Diameter0.250 INCHES NOMINAL IN
Actuator Travel Control FeatureCLUTCH
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power175.0 SINGLE SECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4210-01-153-27506676-04997 INTERCHANGEABLE
Carriage,fire Extinguisher
Wheeler Fleet Solutions, Co.
3120-01-313-39931616D-1/2 INTERCHANGEABLE
Bearing,sleeve
Altra Industrial Motion Corp.
Cross-Reference Index
Part NumberManufacturer
04-997 Ampex Systems Corp (USA)
Related Parts
4210-01-153-2750INTERCHANGEABLE
CARRIAGE,FIRE EXTINGUISHER
6676-04997
3120-01-313-3993INTERCHANGEABLE
BEARING,SLEEVE
1616D-1/2

Frequently Asked Questions

What is NSN 5905-01-073-9970?

NSN 5905-01-073-9970 is a Resistor,variable,wire Wound,non, manufactured by Ampex Systems Corp, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-01-073-9970?

NSN 5905-01-073-9970 has 1 cross-referenced part number: 04-997 (Ampex Systems Corp).

What NSN replaces 5905-01-073-9970?

There are 2 known substitutes for 5905-01-073-9970: 4210-01-153-2750, 3120-01-313-3993. Verify interchangeability with system specifications before substitution.

What are the specifications of 04-997?

Key specifications for 04-997: Mounting Bushing Length: 0.250 INCHES NOMINAL IN; Features Provided: HUMIDITY PROOF; Screw Thread Quantity Per Inch: 32.0; Power Dissipation Rating Per Section in Watts: 5.0 FREE AIR SINGLE SECTION. 28 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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