PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RWR81S4R57FRResistor,fixed,wire Wound,induct

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5905-01-175-0158 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-01-175-0158 — this item is cataloged by the U.S. Government under National Stock Number 5905-01-175-0158. Primary manufacturer part number: RWR81S4R57FR.
Features
  • Resistor,fixed,wire Wound,induct — FSC 5905
  • Temp Coefficient of Resistance in Ppm Per Deg Celsius: -50.0 TO 50.0
  • Unpackaged Unit Weight: 0.350 GRAMS G
  • Test Data Document: 81349-MIL-R-39007 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Ambient Temp in Deg Celsius at Zero Percent Rated Power: 275.0
  • Cubic Measure: 0.002 CUBIC INCHES
  • Terminal Type: WIRE LEAD
  • Inclosure Type: ENCAPSULATED
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,fixed,wire Wound,induct, cataloged under National Stock Number 5905-01-175-0158, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5905-01-175-0158
Primary Part NumberRWR81S4R57FR
Item NameResistor,fixed,wire Wound,induct
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Temp Coefficient of Resistance in Ppm Per Deg Celsius-50.0 TO 50.0
Unpackaged Unit Weight0.350 GRAMS G
Test Data Document81349-MIL-R-39007 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Ambient Temp in Deg Celsius at Zero Percent Rated Power275.0
Cubic Measure0.002 CUBIC INCHES
Terminal TypeWIRE LEAD
Inclosure TypeENCAPSULATED
Power Dissipation Rating in Watts1.000 FREE AIR
Body Diameter0.085 INCHES NOMINAL IN
Reliability IndicatorESTABLISHED
Body Length0.250 INCHES NOMINAL IN
Terminal Length1.500 INCHES MINIMUM IN
Temp Range of Temp Coefficient in Deg Celsius-55.0 TO 275.0
Reliability Failure Rate Level in Percent0.001
Ambient Temp at Full Rated Power25.0 CELSIUS DEGC
Resistance Tolerance in Percent-1.000 TO 1.000
Specification/standard Data81349-MIL-R-39007/9 GOVERNMENT SPECIFICATION
Electrical Resistance4.530 OHMS
Style DesignatorAXIAL TERMINAL EACH END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5905-00-105-17752100-2061 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Keysight Technologies Inc
Cross-Reference Index
Part NumberManufacturer
RWR81S4R57FR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RWR81S453FP Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RWR81S4R53FR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-39007/9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-39007/9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RWR81S4R53FP Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RWR81S4R53FM Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RWR81S4R53FS Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
11131-0005 Raytheon Company Dba Raytheon Co (USA)
B600001369 Kearfott Corporation Div Guidance and Navigation Division (USA)
BPW1A4R5OHMPORM5PCT Bradohm Inc (USA)
RWR81S4R48FR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RS-1/4-8-4RF3F Vishay Dale Electronics, Llc Div Vishay Americas (USA)
L2088067-5 Raytheon Company Dba Raytheon Co (USA)
10127586 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
5905-00-105-1775INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
2100-2061

Frequently Asked Questions

What is NSN 5905-01-175-0158?

NSN 5905-01-175-0158 is a Resistor,fixed,wire Wound,induct, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5905 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5905-01-175-0158?

NSN 5905-01-175-0158 has 15 cross-referenced part numbers: RWR81S4R57FR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), RWR81S453FP (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), RWR81S4R53FR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-R-39007/9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-39007/9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 10 more.

What NSN replaces 5905-01-175-0158?

There is 1 known substitute for 5905-01-175-0158: 5905-00-105-1775. Verify interchangeability with system specifications before substitution.

What are the specifications of RWR81S4R57FR?

Key specifications for RWR81S4R57FR: Temp Coefficient of Resistance in Ppm Per Deg Celsius: -50.0 TO 50.0; Unpackaged Unit Weight: 0.350 GRAMS G; Test Data Document: 81349-MIL-R-39007 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Ambient Temp in Deg Celsius at Zero Percent Rated Power: 275.0. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5905-01-175-0158 still in active supply?

NSN 5905-01-175-0158 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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