PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

501Generator,engine Accessory

Dresser Industries Inc Waukesha Engine Div · NSN 2920-00-405-4314 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-00-405-4314 — this item is cataloged by the U.S. Government under National Stock Number 2920-00-405-4314. Primary manufacturer part number: 501.
Features
  • Generator,engine Accessory — FSC 2920
  • Pilot Diameter: 2.250 INCHES NOMINAL IN
  • Furnished Items: DRIVE PULLEY AND LOCKWASHER AND NUT
  • Angular Deviation of Second Hole From First Hole in Deg: 180.0
  • Distance Between Shaft Center and Bottom Mounting Hole Center: 3.375 INCHES NOMINAL IN
  • Voltage in Volts: 24.0
  • Distance Between Shaft Center and Top Mounting Hole Center: 3.625 INCHES NOMINAL IN
  • Rectifier Location: INTEGRAL
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Generator,engine Accessory, cataloged under National Stock Number 2920-00-405-4314, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Dresser Industries Inc Waukesha Engine Div. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2920-00-405-4314
Primary Part Number501
Item NameGenerator,engine Accessory
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerDresser Industries Inc Waukesha Engine Div
StatusACTIVE
Pilot Diameter2.250 INCHES NOMINAL IN
Furnished ItemsDRIVE PULLEY AND LOCKWASHER AND NUT
Angular Deviation of Second Hole From First Hole in Deg180.0
Distance Between Shaft Center and Bottom Mounting Hole Center3.375 INCHES NOMINAL IN
Voltage in Volts24.0
Distance Between Shaft Center and Top Mounting Hole Center3.625 INCHES NOMINAL IN
Rectifier LocationINTEGRAL
SubmersibilityNONSUBMERSIBLE
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Bottom Mounting Hole Diameter0.438 INCHES NOMINAL IN
Mounting Hole Thread Diameter0.250 INCHES NOMINAL IN
Shaft Rotation DirectionCOUNTERCLOCKWISE
Mounting StyleFLANGE MTD W/TWO MTG HOLES, TOP HOLE THREADED
Ground Polarity TypeNEGATIVE
Grounding MethodINTERNAL
Pilot Height0.250 INCHES NOMINAL IN
Mounting Hole Thread Class2B
Angular Deviation of First Hole From Top Center in Deg0.0
Mounting Hole Thread DirectionRIGHT-HAND
Mounting Hole Thread Quantity Per Inch20
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-301-12168022077 INTERCHANGEABLE
Jack,screw,hand
Us Army Aviation and Missile Command
6625-00-323-0227 INTERCHANGEABLE
Tester
5998-00-445-2346 INTERCHANGEABLE
Printed Circuit Board
1680-00-452-4526A501 INTERCHANGEABLE
Head Operating
L'hotellier SAS
5930-00-583-16529099262 INTERCHANGEABLE
Switch,push
U S Army Tank Automotive Command Amsta-Im-Mm
5915-00-681-7574A501 INTERCHANGEABLE
Filter,radio Frequency Interfere
Mtk Electronics Inc
5935-01-051-8162A501 INTERCHANGEABLE
Connector,receptacle,electrical
Curtis Instruments, Inc. Dba Curtis Pmc Division
5940-01-054-0824A-50-1 INTERCHANGEABLE
Terminal,stud
Saint-Gobain Performance Plastics
6625-01-120-7428 INTERCHANGEABLE
Collet
5950-01-186-00018425 INTERCHANGEABLE
Transformer,power
Berkshire Transformer
Cross-Reference Index
Part NumberManufacturer
501 Dresser Industries Inc Waukesha Engine Div (USA)
A501 C E Niehoff & Co (USA)
2563713 Dresser Industries Inc Waukesha Engine Div (USA)
A-625 C E Niehoff & Co (USA)
501 C E Niehoff & Co (USA)
Related Parts
5120-00-301-1216INTERCHANGEABLE
JACK,SCREW,HAND
8022077
6625-00-323-0227INTERCHANGEABLE
TESTER
5998-00-445-2346INTERCHANGEABLE
PRINTED CIRCUIT BOARD
1680-00-452-4526INTERCHANGEABLE
HEAD OPERATING
A501
5930-00-583-1652INTERCHANGEABLE
SWITCH,PUSH
9099262
5915-00-681-7574INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
A501
5935-01-051-8162INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
A501
5940-01-054-0824INTERCHANGEABLE
TERMINAL,STUD
A-50-1
6625-01-120-7428INTERCHANGEABLE
COLLET
5950-01-186-0001INTERCHANGEABLE
TRANSFORMER,POWER
8425
4320-01-219-6706INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
A625
6540-01-486-4575INTERCHANGEABLE
CASE,SPECTACLE
A 625

Frequently Asked Questions

What is NSN 2920-00-405-4314?

NSN 2920-00-405-4314 is a Generator,engine Accessory, manufactured by Dresser Industries Inc Waukesha Engine Div, classified under FSC 2920 (No Item Name Available). Status: active.

What are the part numbers for NSN 2920-00-405-4314?

NSN 2920-00-405-4314 has 5 cross-referenced part numbers: 501 (Dresser Industries Inc Waukesha Engine Div), A501 (C E Niehoff & Co), 2563713 (Dresser Industries Inc Waukesha Engine Div), A-625 (C E Niehoff & Co), 501 (C E Niehoff & Co).

What NSN replaces 2920-00-405-4314?

There are 12 known substitutes for 2920-00-405-4314: 5120-00-301-1216, 6625-00-323-0227, 5998-00-445-2346 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 501?

Key specifications for 501: Pilot Diameter: 2.250 INCHES NOMINAL IN; Furnished Items: DRIVE PULLEY AND LOCKWASHER AND NUT; Angular Deviation of Second Hole From First Hole in Deg: 180.0; Distance Between Shaft Center and Bottom Mounting Hole Center: 3.375 INCHES NOMINAL IN. 20 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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