PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45681Resistor,variable,wire Wound,pre

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 5905-00-780-8523 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-780-8523 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-780-8523. Primary manufacturer part number: 45681.
Features
  • Resistor,variable,wire Wound,pre — FSC 5905
  • Mounting Lip Depth: 0.0880 INCHES MINIMUM AND 0.0980 INCHES MAXIMUM IN
  • Body Diameter: 1.438 INCHES NOMINAL IN
  • Undercut Diameter: 1.312 INCHES NOMINAL IN
  • Pilot Diameter: 1.3120 INCHES NOMINAL IN
  • Mounting Lip Diameter: 1.4380 INCHES NOMINAL IN
  • Undercut Width: 0.0730 INCHES NOMINAL IN
  • Power Dissipation Rating Per Section in Watts: 2.0 FREE AIR SINGLE SECTION
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 5905-00-780-8523, 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 L3harris Technologies, Inc. Div Space and Airborne Systems. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-780-8523
Primary Part Number45681
Item NameResistor,variable,wire Wound,pre
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusACTIVE
Mounting Lip Depth0.0880 INCHES MINIMUM AND 0.0980 INCHES MAXIMUM IN
Body Diameter1.438 INCHES NOMINAL IN
Undercut Diameter1.312 INCHES NOMINAL IN
Pilot Diameter1.3120 INCHES NOMINAL IN
Mounting Lip Diameter1.4380 INCHES NOMINAL IN
Undercut Width0.0730 INCHES NOMINAL IN
Power Dissipation Rating Per Section in Watts2.0 FREE AIR SINGLE SECTION
Effective Electrical Rotation in Deg Angular Rotation354.0 NOMINAL
Electrical Resistance Per Section5.000 KILOHMS SINGLE SECTION
Actuator TypeSINGLE SHAFT
Maximum Starting Torque1.30 INCH-OUNCES IN
Function Conformity Tolerance Per Section-0.20 TO 0.20 SINGLE SECTION
Shaft Runout0.001 INCHES IN
Features ProvidedNONMETALLIC SHAFT
Pilot Diameter Runout0.00100 INCHES IN
Terminal Type and Quantity5 TAB, SOLDER LUG
Function Conformity Per SectionSINGLE SECTION INDEPENDENT LINEARITY
Fixed Tap Quantity Per Section2 SINGLE SECTION
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 SINGLE SECTION
Terminal LocationUPPER ADJACENT SIDE SINGLE ROW LOCATION NOT OTHERWISE SPECIFIED
Actuator Travel Control FeatureCONTINUOUS MOTION
Ambient Temp in Deg Celsius Per Section at Full Rated Power50.0 SINGLE SECTION
Function Characteristic Per SectionSINGLE SECTION LINEAR
Body Length1.000 INCHES MAXIMUM IN
Shaft StyleROUND
Reliability IndicatorNOT ESTABLISHED
Shaft Length0.641 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN
Overall Diameter1.438 INCHES NOMINAL IN
Pilot Length0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-01-299-818545679 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Bourns Inc
6320-01-369-1648004568 INTERCHANGEABLE
Panel,alarm,shipboard
Dynalec Corporation
5945-01-422-913745681 INTERCHANGEABLE
Plunger,solenoid
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
1501 Bei Sensors & Systems Company, Inc. Dba Bei Duncan (USA)
45681 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
170-8073 Vishay Sprague Inc (USA)
Related Parts
5330-01-299-8185INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
45679
6320-01-369-1648INTERCHANGEABLE
PANEL,ALARM,SHIPBOARD
004568
5945-01-422-9137INTERCHANGEABLE
PLUNGER,SOLENOID
45681

Frequently Asked Questions

What is NSN 5905-00-780-8523?

NSN 5905-00-780-8523 is a Resistor,variable,wire Wound,pre, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-780-8523?

NSN 5905-00-780-8523 has 3 cross-referenced part numbers: 1501 (Bei Sensors & Systems Company, Inc. Dba Bei Duncan), 45681 (L3harris Technologies, Inc. Div Space and Airborne Systems), 170-8073 (Vishay Sprague Inc).

What NSN replaces 5905-00-780-8523?

There are 3 known substitutes for 5905-00-780-8523: 5330-01-299-8185, 6320-01-369-1648, 5945-01-422-9137. Verify interchangeability with system specifications before substitution.

What are the specifications of 45681?

Key specifications for 45681: Mounting Lip Depth: 0.0880 INCHES MINIMUM AND 0.0980 INCHES MAXIMUM IN; Body Diameter: 1.438 INCHES NOMINAL IN; Undercut Diameter: 1.312 INCHES NOMINAL IN; Pilot Diameter: 1.3120 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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