PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8921Motor,direct Current

Reliance Electric · NSN 6105-00-635-9718 · FSC 6105 · No Item Name Available
Verified by PartsTable
NSN 6105-00-635-9718 — this item is cataloged by the U.S. Government under National Stock Number 6105-00-635-9718. Primary manufacturer part number: 8921.
Features
  • Motor,direct Current — FSC 6105
  • Test Data Document: 81349-MIL-M-2511 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.).
  • Winding Type: SHUNT WOUND
  • Shaft Rotation Direction: COUNTERCLOCKWISE IDENTICAL ENDS
  • Cooling Method: NATURAL CONVECTION VENTILATED
  • Features Provided: VERTICAL MOUNTING POSITION
  • Bearing Type: ROLLER
  • Current Rating Method: LOAD
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Motor,direct Current, cataloged under National Stock Number 6105-00-635-9718, is classified within Federal Supply Class 6105 (No Item Name Available) of the Electric Wire, Power, and Distribution Equipment group. The primary manufacturer of record is Reliance Electric. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6105-00-635-9718
Primary Part Number8921
Item NameMotor,direct Current
FSC / FSG6105 / 61 — No Item Name Available
ManufacturerReliance Electric
StatusACTIVE
Test Data Document81349-MIL-M-2511 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.).
Winding TypeSHUNT WOUND
Shaft Rotation DirectionCOUNTERCLOCKWISE IDENTICAL ENDS
Cooling MethodNATURAL CONVECTION VENTILATED
Features ProvidedVERTICAL MOUNTING POSITION
Bearing TypeROLLER
Current Rating MethodLOAD
Keyway Width0.7500 INCHES NOMINAL IDENTICAL ENDS IN
Connection Type and Voltage Rating in Volts115.0 LINE TO NEUTRAL SINGLE INPUT
Inclosure SpecificationMIL-STD-108
Taper Length3.2500 INCHES NOMINAL IDENTICAL ENDS IN
Shaft Diameter3.0000 INCHES NOMINAL IDENTICAL ENDS IN
Time Interval30.0 MINUTES MAXIMUM ON
Temp Rating55.0 AMBIENT CELSIUS AND 40.0 OPERATING CELSIUS
Shaft Center to Mounting Surface Distance12.625 INCHES SINGLE END IN
Duty CycleINTERMITTENT
Keyway Depth0.3750 INCHES NOMINAL IDENTICAL ENDS IN
Taper1.300 PER FOOT IN INCHES IDENTICAL ENDS
Mounting MethodFIXED BASE
Length of Shaft From Housing6.250 INCHES FIRST END IN
Nominal Center to Center Distance Between Mounting Facilities Parallel to Length26.625 INCHES IN
Current Rating in Amps370.000 SINGLE INPUT
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Enclosure FeatureWATERTIGHT
Thread Length2.1250 INCHES NOMINAL IDENTICAL ENDS IN
Shaft End CharacteristicA2 FIRST STYLE AND A29 SECOND STYLE IDENTICAL ENDS
Keyway Length3.2500 INCHES NOMINAL IDENTICAL ENDS IN
Specific UseMOTOR FOR DRIVING TOWING MACHINE
Power Rating50.0000 HORSEPOWER OUTPUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
5975-00-345-0679 INTERCHANGEABLE
Arm,cable Extension
6685-01-407-8391 INTERCHANGEABLE
Gage,pressure,dial Indicating
5985-01-726-12568921 INTERCHANGEABLE
Attenuator,fixed
Bird Electronic Corporation Div Bird Electronic Corp
Cross-Reference Index
Part NumberManufacturer
8921 Reliance Electric (USA)
MIL-M-17413 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
8921 Reliance Electric Company Dba Reliance & Dodge Brands (USA)
Related Parts
5975-00-345-0679INTERCHANGEABLE
ARM,CABLE EXTENSION
6685-01-407-8391INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
5985-01-726-1256INTERCHANGEABLE
ATTENUATOR,FIXED
8921

Frequently Asked Questions

What is NSN 6105-00-635-9718?

NSN 6105-00-635-9718 is a Motor,direct Current, manufactured by Reliance Electric, classified under FSC 6105 (No Item Name Available). Status: active.

What are the part numbers for NSN 6105-00-635-9718?

NSN 6105-00-635-9718 has 3 cross-referenced part numbers: 8921 (Reliance Electric), MIL-M-17413 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 8921 (Reliance Electric Company Dba Reliance & Dodge Brands).

What NSN replaces 6105-00-635-9718?

There are 3 known substitutes for 6105-00-635-9718: 5975-00-345-0679, 6685-01-407-8391, 5985-01-726-1256. Verify interchangeability with system specifications before substitution.

What are the specifications of 8921?

Key specifications for 8921: Test Data Document: 81349-MIL-M-2511 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.).; Winding Type: SHUNT WOUND; Shaft Rotation Direction: COUNTERCLOCKWISE IDENTICAL ENDS; Cooling Method: NATURAL CONVECTION VENTILATED. 30 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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