PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2101-7-1Resistor,variable,wire Wound,pre

B.c. Systems Inc. Dba Bc Systems Inc · NSN 5905-00-901-3756 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-901-3756 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-901-3756. Primary manufacturer part number: 2101-7-1.
Features
  • Resistor,variable,wire Wound,pre — FSC 5905
  • Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION
  • Pilot Length: 0.0620 INCHES NOMINAL IN
  • Shaft Diameter: 0.125 INCHES NOMINAL IN
  • Electrical Resistance Per Section: 20.0 KILOHMS SINGLE SECTION
  • Section Quantity: 1
  • Bearing Type: BALL SHAFT
  • Mounting Method: CLAMP RING(S)
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 5905-00-901-3756, 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 B.c. Systems Inc. Dba Bc Systems Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5905-00-901-3756
Primary Part Number2101-7-1
Item NameResistor,variable,wire Wound,pre
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerB.c. Systems Inc. Dba Bc Systems Inc
StatusACTIVE
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power125.0 SINGLE SECTION
Pilot Length0.0620 INCHES NOMINAL IN
Shaft Diameter0.125 INCHES NOMINAL IN
Electrical Resistance Per Section20.0 KILOHMS SINGLE SECTION
Section Quantity1
Bearing TypeBALL SHAFT
Mounting MethodCLAMP RING(S)
Actuator Travel Control FeatureCONTINUOUS MOTION
Tap Location Tolerance Per Section-1.0 TO 1.0 DEG ANGULAR ROTATION SINGLE SECTION
Function Conformity Per SectionSINGLE SECTION INDEPENDENT LINEARITY
Fixed Tap Quantity Per Section1 SINGLE SECTION
Terminal Type and Quantity4 TURRET
Shaft End Play0.005 INCHES IN
Terminal LocationRADIALLY POSITIONED OVER MORE THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius-50.0 TO 50.0 SINGLE SECTION
Ambient Temp in Deg Celsius Per Section at Full Rated Power70.0 SINGLE SECTION
Power Dissipation Rating Per Section in Watts1.0 FREE AIR SINGLE SECTION
Resistance Tolerance Per Section in Percent-10.0 TO 10.0 SINGLE SECTION
Function Characteristic Per SectionSINGLE SECTION LINEAR
Function Conformity Tolerance Per Section-1.00 TO 1.00 SINGLE SECTION
Pilot Diameter Runout0.001 INCHES IN
Maximum Starting Torque0.50 INCH-OUNCES IN
Shaft Runout0.002 INCHES IN
Shaft Radial Play0.002 INCHES IN
Lateral Runout0.002 INCHES IN
Effective Electrical Rotation in Deg Angular Rotation340.0 NOMINAL
Actuator TypeSINGLE SHAFT
Rotary Actuator Travel in Angular Deg360.0 NOMINAL
Shaft StyleROUND
Pilot Diameter0.7500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5340-00-633-1875210171 INTERCHANGEABLE
Bumper
Kidde Technologies, Inc Div Kidde Aerospace and Defense
4810-00-877-145421017-1 INTERCHANGEABLE
Valve Assembly
Rocker Solenoid Co Dba Rocker Solenoid Co
5340-01-272-06012-1017-1 INTERCHANGEABLE
Strike,catch
Star Cases Llc Dba Zero Manufacturing
3010-01-486-3193 INTERCHANGEABLE
Drive Unit,angle
Cross-Reference Index
Part NumberManufacturer
2101-7-1 Tempo Instrument Inc Defense Electronics Div (USA)
2101-7-1 PRIMARY B.c. Systems Inc. Dba Bc Systems Inc (USA)
Related Parts
5340-00-633-1875INTERCHANGEABLE
BUMPER
210171
4810-00-877-1454INTERCHANGEABLE
VALVE ASSEMBLY
21017-1
5340-01-272-0601INTERCHANGEABLE
STRIKE,CATCH
2-1017-1
3010-01-486-3193INTERCHANGEABLE
DRIVE UNIT,ANGLE

Frequently Asked Questions

What is NSN 5905-00-901-3756?

NSN 5905-00-901-3756 is a Resistor,variable,wire Wound,pre, manufactured by B.c. Systems Inc. Dba Bc Systems Inc, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-901-3756?

NSN 5905-00-901-3756 has 2 cross-referenced part numbers: 2101-7-1 (Tempo Instrument Inc Defense Electronics Div), 2101-7-1 (B.c. Systems Inc. Dba Bc Systems Inc).

What NSN replaces 5905-00-901-3756?

There are 4 known substitutes for 5905-00-901-3756: 5340-00-633-1875, 4810-00-877-1454, 5340-01-272-0601 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2101-7-1?

Key specifications for 2101-7-1: Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION; Pilot Length: 0.0620 INCHES NOMINAL IN; Shaft Diameter: 0.125 INCHES NOMINAL IN; Electrical Resistance Per Section: 20.0 KILOHMS SINGLE SECTION. 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