PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RBR55L187R0FRResistor,fixed,wire Wound

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5905-00-494-5881 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-494-5881 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-494-5881. Primary manufacturer part number: RBR55L187R0FR.
Features
  • Resistor,fixed,wire Wound — FSC 5905
  • Test Data Document: 81349-MIL-R-39005 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: 145.0
  • Power Dissipation Rating in Watts: 0.150 FREE AIR
  • Inclosure Type: ENCAPSULATED
  • Body Length: 0.500 INCHES NOMINAL IN
  • Ambient Temp at Full Rated Power: 125.0 CELSIUS DEGC
  • Temp Range of Temp Coefficient in Deg Celsius: -65.0 TO 145.0
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 5905-00-494-5881, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5905-00-494-5881
Primary Part NumberRBR55L187R0FR
Item NameResistor,fixed,wire Wound
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Test Data Document81349-MIL-R-39005 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 Power145.0
Power Dissipation Rating in Watts0.150 FREE AIR
Inclosure TypeENCAPSULATED
Body Length0.500 INCHES NOMINAL IN
Ambient Temp at Full Rated Power125.0 CELSIUS DEGC
Temp Range of Temp Coefficient in Deg Celsius-65.0 TO 145.0
Body Diameter0.250 INCHES NOMINAL IN
Terminal TypeWIRE LEAD
Reliability IndicatorESTABLISHED
Reliability Failure Rate Level in Percent0.010
Electrical Resistance187.000 OHMS
Specification/standard Data81349-MIL-R-39005/4 GOVERNMENT SPECIFICATION
Style DesignatorAXIAL TERMINAL EACH END
Resistance Tolerance in Percent-1.000 TO 1.000
Temp Coefficient of Resistance in Ppm Per Deg Celsius-10.0 TO 10.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5905-00-688-3416 INTERCHANGEABLE
Resistor,fixed,wire Wound
6645-01-110-1334100691 INTERCHANGEABLE
Meter,time Totalizing
Maxima Technologies & Systems Llc
6750-01-427-1944 INTERCHANGEABLE
Film,photographic
6645-01-430-4125100689 INTERCHANGEABLE
Meter,time Totalizing
Maxima Technologies & Systems Llc
Cross-Reference Index
Part NumberManufacturer
RBR55L187R0FR Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
181358 Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)
MIL-R-39005/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-39005/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5905-00-688-3416INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
6645-01-110-1334INTERCHANGEABLE
METER,TIME TOTALIZING
100691
6750-01-427-1944INTERCHANGEABLE
FILM,PHOTOGRAPHIC
6645-01-430-4125INTERCHANGEABLE
METER,TIME TOTALIZING
100689

Frequently Asked Questions

What is NSN 5905-00-494-5881?

NSN 5905-00-494-5881 is a Resistor,fixed,wire Wound, 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: active.

What are the part numbers for NSN 5905-00-494-5881?

NSN 5905-00-494-5881 has 4 cross-referenced part numbers: RBR55L187R0FR (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 181358 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), MIL-R-39005/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-39005/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5905-00-494-5881?

There are 4 known substitutes for 5905-00-494-5881: 5905-00-688-3416, 6645-01-110-1334, 6750-01-427-1944 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RBR55L187R0FR?

Key specifications for RBR55L187R0FR: Test Data Document: 81349-MIL-R-39005 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: 145.0; Power Dissipation Rating in Watts: 0.150 FREE AIR; Inclosure Type: ENCAPSULATED. 16 total characteristics are documented in the Federal Logistics Information System.

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