PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RW21G631Resistor,fixed,wire Wound,induct

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5905-00-844-3623 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-844-3623 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-844-3623. Primary manufacturer part number: RW21G631.
Features
  • Resistor,fixed,wire Wound,induct — FSC 5905
  • Terminal Width: 0.265 INCHES NOMINAL IN
  • Temp Range of Temp Coefficient in Deg Celsius: -55.0 TO 350.0
  • Reliability Indicator: NOT ESTABLISHED
  • Power Dissipation Rating in Watts: 31.000 FREE AIR
  • Ambient Temp at Full Rated Power: 25.0 CELSIUS DEGC
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 2.750 INCHES NOMINAL IN
  • Terminal Type: TAB, SOLDER LUG
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 5905-00-844-3623, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-844-3623
Primary Part NumberRW21G631
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
StatusACTIVE
Terminal Width0.265 INCHES NOMINAL IN
Temp Range of Temp Coefficient in Deg Celsius-55.0 TO 350.0
Reliability IndicatorNOT ESTABLISHED
Power Dissipation Rating in Watts31.000 FREE AIR
Ambient Temp at Full Rated Power25.0 CELSIUS DEGC
Distance Between Centerlines of Mounting Facilities Parallel to Body Length2.750 INCHES NOMINAL IN
Terminal TypeTAB, SOLDER LUG
Body Length2.000 INCHES NOMINAL IN
Ambient Temp in Deg Celsius at Zero Percent Rated Power350.0
Inclosure TypeENCAPSULATED
Terminal Length0.407 INCHES NOMINAL IN
Body Width1.187 INCHES NOMINAL IN
Mounting Hole Size0.196 INCHES NOMINAL IN
Test Data Document81349-MILR26/2 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.).
Temp Coefficient of Resistance in Ppm Per Deg Celsius-260.0 TO 260.0
Resistance Tolerance in Percent-5.000 TO 5.000
Style DesignatorTERMINALS ONE EDGE
Electrical Resistance620.000 OHMS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5905-00-171-1754 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Cross-Reference Index
Part NumberManufacturer
RW21G631 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-26/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RW21V621 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-26/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILR26 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
280-1037P57 Raytheon Company Div Corp (USA)
Related Parts
5905-00-171-1754INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT

Frequently Asked Questions

What is NSN 5905-00-844-3623?

NSN 5905-00-844-3623 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: active.

What are the part numbers for NSN 5905-00-844-3623?

NSN 5905-00-844-3623 has 6 cross-referenced part numbers: RW21G631 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-26/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), RW21V621 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-R-26/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILR26 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5905-00-844-3623?

There is 1 known substitute for 5905-00-844-3623: 5905-00-171-1754. Verify interchangeability with system specifications before substitution.

What are the specifications of RW21G631?

Key specifications for RW21G631: Terminal Width: 0.265 INCHES NOMINAL IN; Temp Range of Temp Coefficient in Deg Celsius: -55.0 TO 350.0; Reliability Indicator: NOT ESTABLISHED; Power Dissipation Rating in Watts: 31.000 FREE AIR. 18 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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