PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2151B502Resistor,variable,wire Wound,pre

Sensor Systems, L.l.c. Dba Sensor Systems Llc · NSN 5905-00-222-8977 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-222-8977 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-222-8977. Primary manufacturer part number: 2151B502.
Features
  • Resistor,variable,wire Wound,pre — FSC 5905
  • Section Quantity: 1
  • Mounting Bushing Length: 0.250 INCHES NOMINAL IN
  • Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 105.0 SINGLE SECTION
  • Screw Thread Diameter: 0.375 INCHES NOMINAL IN
  • Bearing Type: SLEEVE SHAFT
  • Mounting Method: STANDARD BUSHING
  • Rotary Actuator Travel in Angular Deg: 3600.0 NOMINAL
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 5905-00-222-8977, 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 Sensor Systems, L.l.c. Dba Sensor Systems Llc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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
NSN5905-00-222-8977
Primary Part Number2151B502
Item NameResistor,variable,wire Wound,pre
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerSensor Systems, L.l.c. Dba Sensor Systems Llc
StatusACTIVE
Section Quantity1
Mounting Bushing Length0.250 INCHES NOMINAL IN
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power105.0 SINGLE SECTION
Screw Thread Diameter0.375 INCHES NOMINAL IN
Bearing TypeSLEEVE SHAFT
Mounting MethodSTANDARD BUSHING
Rotary Actuator Travel in Angular Deg3600.0 NOMINAL
Shaft End Play0.008 INCHES IN
Maximum Stop Torque64.00 INCH-OUNCES IN
Effective Electrical Rotation in Deg Angular Rotation3600.0 NOMINAL
Screw Thread Quantity Per Inch32.0
Maximum Starting Torque0.75 INCH-OUNCES IN
Screw Thread Series DesignatorUNEF
Maximum Running Torque0.65 INCH-OUNCES IN
Shaft Runout0.001 INCHES IN
Pilot Diameter Runout0.003 INCHES IN
Shaft Radial Play0.002 INCHES IN
Actuator TypeSINGLE SHAFT
Electrical Resistance Per Section5.0 KILOHMS SINGLE SECTION
Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius-70.0 TO 70.0 SINGLE SECTION
Terminal Type and Quantity3 TAB, SOLDER LUG
Resistance Tolerance Per Section in Percent-10.0 TO 10.0 SINGLE SECTION
Terminal LocationLONGITUDINALLY POSITIONED ON THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Power Dissipation Rating Per Section in Watts3.0 FREE AIR SINGLE SECTION
Function Conformity Tolerance Per Section-0.25 TO 0.25 SINGLE SECTION
Ambient Temp in Deg Celsius Per Section at Full Rated Power40.0 SINGLE SECTION
Function Conformity Per SectionSINGLE SECTION INDEPENDENT LINEARITY
Actuator Travel Control FeatureSTOPS
Function Characteristic Per SectionSINGLE SECTION LINEAR
Body StyleCYLINDRICAL BUSHING MOUNTED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-00-032-80261383-8-8 INTERCHANGEABLE
Valve,plug
Hydro-Aire Aerospace Corp
5961-01-033-6048138288 INTERCHANGEABLE
Retainer,semiconductor Device
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
2151B502 PRIMARY Sensor Systems, L.l.c. Dba Sensor Systems Llc (USA)
AW7048-042-26 Leonardo Germany Gmbh (DEU)
C42408Z5X2-0-27 Hensoldt Sensors Gmbh (DEU)
138288 Leonardo Germany Gmbh (DEU)
Related Parts
4820-00-032-8026INTERCHANGEABLE
VALVE,PLUG
1383-8-8
5961-01-033-6048INTERCHANGEABLE
RETAINER,SEMICONDUCTOR DEVICE
138288

Frequently Asked Questions

What is NSN 5905-00-222-8977?

NSN 5905-00-222-8977 is a Resistor,variable,wire Wound,pre, manufactured by Sensor Systems, L.l.c. Dba Sensor Systems Llc, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-222-8977?

NSN 5905-00-222-8977 has 4 cross-referenced part numbers: 2151B502 (Sensor Systems, L.l.c. Dba Sensor Systems Llc), AW7048-042-26 (Leonardo Germany Gmbh), C42408Z5X2-0-27 (Hensoldt Sensors Gmbh), 138288 (Leonardo Germany Gmbh).

What NSN replaces 5905-00-222-8977?

There are 2 known substitutes for 5905-00-222-8977: 4820-00-032-8026, 5961-01-033-6048. Verify interchangeability with system specifications before substitution.

What are the specifications of 2151B502?

Key specifications for 2151B502: Section Quantity: 1; Mounting Bushing Length: 0.250 INCHES NOMINAL IN; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 105.0 SINGLE SECTION; Screw Thread Diameter: 0.375 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.
PartsTable Design LLC · partstable.com