PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet
MRO / Engine Accessories / 2920-00-419-9224

A501-2Regulator,engine Generator

C E Niehoff & Co · NSN 2920-00-419-9224 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-00-419-9224 — this item is cataloged by the U.S. Government under National Stock Number 2920-00-419-9224. Primary manufacturer part number: A501-2.
MRO FSG 29 NO ITEM NAME AVAILABLE Technical Drawing
2920-00-419-9224 — No Item Name Available illustration
Features
  • Regulator,engine Generator — FSC 2920
  • Environmental Protection: WATERTIGHT
  • Terminal Quantity: 1
  • Mounting Hole Diameter: 0.218 INCHES NOMINAL IN
  • System Voltage Rating: 24.0
  • Field Relay Unit: NOT INCLUDED
  • Radio Interference Shielding: NOT PROVIDED
  • Reverse Current Overload Circuit Breaker: NOT INCLUDED
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Regulator,engine Generator, cataloged under National Stock Number 2920-00-419-9224, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is C E Niehoff & Co. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2920-00-419-9224
Primary Part NumberA501-2
Item NameRegulator,engine Generator
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerC E Niehoff & Co
StatusACTIVE
Environmental ProtectionWATERTIGHT
Terminal Quantity1
Mounting Hole Diameter0.218 INCHES NOMINAL IN
System Voltage Rating24.0
Field Relay UnitNOT INCLUDED
Radio Interference ShieldingNOT PROVIDED
Reverse Current Overload Circuit BreakerNOT INCLUDED
Shock MountNOT PROVIDED
Terminal Quantity3
Voltage Regulator Unit TypeTRANSISTOR
Mounting StyleTWO HOLE
Terminal TypeQUICK DISCONNECT, MALE
Terminal EncasementENCASED
Conduit Connection Quantity1
Terminal TypeSCREW
Voltage Regulator Unit Quantity1
System Ground PolarityNEGATIVE
Distance Between Holes Along Length3.625 INCHES NOMINAL IN
Output Voltage Rating in Volts27.7 NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 10
3030-00-127-4637 INTERCHANGEABLE
Belt,v
3455-00-194-051510000 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
5985-00-194-9740A57 INTERCHANGEABLE
Dummy Load,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5360-00-290-8905 INTERCHANGEABLE
Spring,helical,compression
5930-00-573-3830A5-7 INTERCHANGEABLE
Adapter,switch Actuator
Safran Power Usa, Llc
6625-00-838-4928 INTERCHANGEABLE
Ammeter
2825-00-900-378757W INTERCHANGEABLE
Weight,governor
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
5962-01-160-599077C715572-1 INTERCHANGEABLE
Microcircuit,linear
Lockheed Martin Corporation Div Rms
5962-01-205-1476A57 INTERCHANGEABLE
Microcircuit
Caes Systems Llc Div Missile Systems Division
5342-01-390-3841A5-012 INTERCHANGEABLE
Cap,filler Opening
Del Mar Avionics, Llc
Cross-Reference Index
Part NumberManufacturer
A57 C E Niehoff & Co (USA)
A501-2 PRIMARY C E Niehoff & Co (USA)
Related Parts
3030-00-127-4637INTERCHANGEABLE
BELT,V
3455-00-194-0515INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10000
5985-00-194-9740INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
A57
5360-00-290-8905INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5930-00-573-3830INTERCHANGEABLE
ADAPTER,SWITCH ACTUATOR
A5-7
6625-00-838-4928INTERCHANGEABLE
AMMETER
2825-00-900-3787INTERCHANGEABLE
WEIGHT,GOVERNOR
57W
5962-01-160-5990INTERCHANGEABLE
MICROCIRCUIT,LINEAR
77C715572-1
5962-01-205-1476INTERCHANGEABLE
MICROCIRCUIT
A57
5342-01-390-3841INTERCHANGEABLE
CAP,FILLER OPENING
A5-012

Frequently Asked Questions

What is NSN 2920-00-419-9224?

NSN 2920-00-419-9224 is a Regulator,engine Generator, manufactured by C E Niehoff & Co, classified under FSC 2920 (No Item Name Available). Status: active.

What are the part numbers for NSN 2920-00-419-9224?

NSN 2920-00-419-9224 has 2 cross-referenced part numbers: A57 (C E Niehoff & Co), A501-2 (C E Niehoff & Co).

What NSN replaces 2920-00-419-9224?

There are 10 known substitutes for 2920-00-419-9224: 3030-00-127-4637, 3455-00-194-0515, 5985-00-194-9740 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A501-2?

Key specifications for A501-2: Environmental Protection: WATERTIGHT; Terminal Quantity: 1; Mounting Hole Diameter: 0.218 INCHES NOMINAL IN; System Voltage Rating: 24.0. 20 total characteristics are documented in the Federal Logistics Information System.

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