PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B12J20KResistor,fixed,wire Wound

Ohmite Holding, L.l.c. Dba Ohmite Manufacturing · NSN 5905-00-052-1981 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-052-1981 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-052-1981. Primary manufacturer part number: B12J20K.
Features
  • Resistor,fixed,wire Wound — FSC 5905
  • Temp Coefficient of Resistance in Ppm Per Deg Celsius: -260.0 TO 260.0
  • Resistance Tolerance in Percent: -5.000 TO 5.000
  • Ambient Temp at Full Rated Power: 40.0 CELSIUS DEGC
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type: TAB W/WIRE LEAD
  • Terminal Length: 1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN
  • Power Dissipation Rating in Watts: 20.000 FREE AIR
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,fixed,wire Wound, cataloged under National Stock Number 5905-00-052-1981, 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 Ohmite Holding, L.l.c. Dba Ohmite Manufacturing. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5905-00-052-1981
Primary Part NumberB12J20K
Item NameResistor,fixed,wire Wound
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerOhmite Holding, L.l.c. Dba Ohmite Manufacturing
StatusCANCELLED
Temp Coefficient of Resistance in Ppm Per Deg Celsius-260.0 TO 260.0
Resistance Tolerance in Percent-5.000 TO 5.000
Ambient Temp at Full Rated Power40.0 CELSIUS DEGC
Reliability IndicatorNOT ESTABLISHED
Terminal TypeTAB W/WIRE LEAD
Terminal Length1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN
Power Dissipation Rating in Watts20.000 FREE AIR
Inclosure TypeENCAPSULATED
Style DesignatorRADIAL TERMINAL EACH END
Temp Range of Temp Coefficient in Deg Celsius-55.0 TO 340.0
Body Diameter0.281 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
Ambient Temp in Deg Celsius at Zero Percent Rated Power340.0
Cubic Measure0.165 CUBIC INCHES
Body Length1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM IN
Electrical Resistance20.000 KILOHMS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4330-00-218-5914 INTERCHANGEABLE
Holder,nozzle
2530-00-357-5066176-5 INTERCHANGEABLE
Parts Kit,relay Valve,air Pressu
Sealco Air Controls Inc
5915-00-390-8501293-1260-020 INTERCHANGEABLE
Filter,band Pass
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5950-00-439-6259722849-1 INTERCHANGEABLE
Transformer,audio Frequency
Raytheon Company Div Rmd Strategic
3110-00-555-5577109119-20 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5975-00-660-5809 INTERCHANGEABLE
Coupling,electrical Conduit
5950-00-833-02492115627 INTERCHANGEABLE
Reactor
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6515-00-915-4162017800 INTERCHANGEABLE
Tube,connecting,utility
C. R. Bard, Inc.
5360-01-078-55771765 INTERCHANGEABLE
Spring,helical,compression
Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.
4330-01-110-683051765 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
Cross-Reference Index
Part NumberManufacturer
B12J20K PRIMARY Ohmite Holding, L.l.c. Dba Ohmite Manufacturing (USA)
1765 Ohmite Holding, L.l.c. Dba Ohmite Manufacturing (USA)
217063P63 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
Related Parts
4330-00-218-5914INTERCHANGEABLE
HOLDER,NOZZLE
2530-00-357-5066INTERCHANGEABLE
PARTS KIT,RELAY VALVE,AIR PRESSU
176-5
5915-00-390-8501INTERCHANGEABLE
FILTER,BAND PASS
293-1260-020
5950-00-439-6259INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
722849-1
3110-00-555-5577INTERCHANGEABLE
BEARING,BALL,ANNULAR
109119-20
5975-00-660-5809INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
5950-00-833-0249INTERCHANGEABLE
REACTOR
2115627
6515-00-915-4162INTERCHANGEABLE
TUBE,CONNECTING,UTILITY
017800
5360-01-078-5577INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1765
4330-01-110-6830INTERCHANGEABLE
FILTER ELEMENT,FLUID
51765
3040-01-297-3509INTERCHANGEABLE
LINING,FRICTION
6740-01-383-3599INTERCHANGEABLE
REMOTE CONTROL,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5905-00-052-1981?

NSN 5905-00-052-1981 is a Resistor,fixed,wire Wound, manufactured by Ohmite Holding, L.l.c. Dba Ohmite Manufacturing, classified under FSC 5905 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5905-00-052-1981?

NSN 5905-00-052-1981 has 3 cross-referenced part numbers: B12J20K (Ohmite Holding, L.l.c. Dba Ohmite Manufacturing), 1765 (Ohmite Holding, L.l.c. Dba Ohmite Manufacturing), 217063P63 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems).

What NSN replaces 5905-00-052-1981?

There are 12 known substitutes for 5905-00-052-1981: 4330-00-218-5914, 2530-00-357-5066, 5915-00-390-8501 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B12J20K?

Key specifications for B12J20K: Temp Coefficient of Resistance in Ppm Per Deg Celsius: -260.0 TO 260.0; Resistance Tolerance in Percent: -5.000 TO 5.000; Ambient Temp at Full Rated Power: 40.0 CELSIUS DEGC; Reliability Indicator: NOT ESTABLISHED. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5905-00-052-1981 still in active supply?

NSN 5905-00-052-1981 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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