PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RWR74S7R50FSResistor,fixed,wire Wound,induct

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5905-01-137-5187 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-01-137-5187 — this item is cataloged by the U.S. Government under National Stock Number 5905-01-137-5187. Primary manufacturer part number: RWR74S7R50FS.
Features
  • Resistor,fixed,wire Wound,induct — FSC 5905
  • Body Diameter: 0.281 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
  • Ambient Temp at Full Rated Power: 25.0 CELSIUS DEGC
  • Reliability Indicator: ESTABLISHED
  • Body Length: 0.813 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
  • Inclosure Type: ENCAPSULATED
  • Reliability Failure Rate Level in Percent: 0.001
  • Ambient Temp in Deg Celsius at Zero Percent Rated Power: 275.0
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 5905-01-137-5187, 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 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5905-01-137-5187
Primary Part NumberRWR74S7R50FS
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
Body Diameter0.281 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
Ambient Temp at Full Rated Power25.0 CELSIUS DEGC
Reliability IndicatorESTABLISHED
Body Length0.813 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
Inclosure TypeENCAPSULATED
Reliability Failure Rate Level in Percent0.001
Ambient Temp in Deg Celsius at Zero Percent Rated Power275.0
Terminal Length1.500 INCHES MINIMUM IN
Temp Range of Temp Coefficient in Deg Celsius-55.0 TO 275.0
Terminal TypeWIRE LEAD
Power Dissipation Rating in Watts5.000 FREE AIR
Cubic Measure0.067 CUBIC INCHES
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.).
Unpackaged Unit Weight5.0 GRAMS G
Resistance Tolerance in Percent-1.000 TO 1.000
Specification/standard Data81349-MIL-R-39007/6 GOVERNMENT SPECIFICATION
Temp Coefficient of Resistance in Ppm Per Deg Celsius-50.0 TO 50.0
Electrical Resistance7.500 OHMS
Style DesignatorAXIAL TERMINAL EACH END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5905-00-240-6427 INTERCHANGEABLE
Resistor,fixed,wire Wound
2530-00-294-42441921349 INTERCHANGEABLE
Lining,friction
Chrysler Realty Company Llc Dba Daimler Chrysler
Cross-Reference Index
Part NumberManufacturer
RWR74S7R50FS Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
684-364 Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
RWR74S7R50FR Tempo Instrument Inc Defense Electronics Div (USA)
RWR74S7R50FR B.c. Systems Inc. Dba Bc Systems Inc (USA)
5214-361 Raytheon Company Div Rmd Strategic (USA)
MIL-R-39007/6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-39007/6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
226L750N80 Delta Data Systems Corp (USA)
Related Parts
5905-00-240-6427INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
2530-00-294-4244INTERCHANGEABLE
LINING,FRICTION
1921349

Frequently Asked Questions

What is NSN 5905-01-137-5187?

NSN 5905-01-137-5187 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 5905-01-137-5187?

NSN 5905-01-137-5187 has 8 cross-referenced part numbers: RWR74S7R50FS (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 684-364 (Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc), RWR74S7R50FR (Tempo Instrument Inc Defense Electronics Div), RWR74S7R50FR (B.c. Systems Inc. Dba Bc Systems Inc), 5214-361 (Raytheon Company Div Rmd Strategic) and 3 more.

What NSN replaces 5905-01-137-5187?

There are 2 known substitutes for 5905-01-137-5187: 5905-00-240-6427, 2530-00-294-4244. Verify interchangeability with system specifications before substitution.

What are the specifications of RWR74S7R50FS?

Key specifications for RWR74S7R50FS: Body Diameter: 0.281 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN; Ambient Temp at Full Rated Power: 25.0 CELSIUS DEGC; Reliability Indicator: ESTABLISHED; Body Length: 0.813 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5905-01-137-5187 still in active supply?

NSN 5905-01-137-5187 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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