PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G001-2553GNGenerator,engine Accessory

Prestolite Electric Inc · NSN 2920-00-640-7546 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-00-640-7546 — this item is cataloged by the U.S. Government under National Stock Number 2920-00-640-7546. Primary manufacturer part number: G001-2553GN.
Features
  • Generator,engine Accessory — FSC 2920
  • Second Step Diameter: 0.874 INCHES NOMINAL IN
  • Environmental Protection: CORROSION RESISTANT AND FUNGUS RESISTANT
  • Mounting Hole Thread Diameter: 0.375 INCHES NOMINAL IN
  • Distance From End to Keyway Center: 1.250 INCHES NOMINAL IN
  • Maximum Output Current Rating in Amps: 17.5
  • Thread Quantity Per Inch: 18
  • Distance From Raised Face to Second Mounting Center: 6.625 INCHES NOMINAL IN
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Generator,engine Accessory, cataloged under National Stock Number 2920-00-640-7546, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Prestolite Electric Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2920-00-640-7546
Primary Part NumberG001-2553GN
Item NameGenerator,engine Accessory
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerPrestolite Electric Inc
StatusCANCELLED
Second Step Diameter0.874 INCHES NOMINAL IN
Environmental ProtectionCORROSION RESISTANT AND FUNGUS RESISTANT
Mounting Hole Thread Diameter0.375 INCHES NOMINAL IN
Distance From End to Keyway Center1.250 INCHES NOMINAL IN
Maximum Output Current Rating in Amps17.5
Thread Quantity Per Inch18
Distance From Raised Face to Second Mounting Center6.625 INCHES NOMINAL IN
Distance From Raised Face to First Mounting Hole Center3.125 INCHES NOMINAL IN
Mounting Hole Thread Quantity Per Inch16
Voltage in Volts28.0
Angular Deviation of First Hole From Top Center in Deg135.0
Armature Minimum Speed in RPM at Full Current Output1330
Angular Deviation of Second Hole From First Hole in Deg90.0
Maximum Rated Armature Speed in RPM4700
Shaft Rotation DirectionCOUNTERCLOCKWISE
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Minimum Current Cut-in Speed in RPM1050
Thread SeriesUNF
Thread Diameter0.625 INCHES NOMINAL IN
Shaft Drive End StyleSTRAIGHT SHAFT END, THREADED, W/KEYWAY
Thread Class2A A
Mounting Hole Thread Class2B
Keyway Length1.000 INCHES NOMINAL IN
Keyway Width0.250 INCHES NOMINAL IN
SubmersibilityNONSUBMERSIBLE
Thread DirectionRIGHT-HAND
Thread Length0.625 INCHES NOMINAL IN
Mounting StyleBODY MTD W/FOUR THREADED MTG HOLES
Unthreaded Portion Length1.688 INCHES NOMINAL IN
Mounting Hole Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5133-00-189-9187 INTERCHANGEABLE
Drill,twist
5310-00-208-5469 INTERCHANGEABLE
Nut,plain,slotted,hexagon
6810-00-241-11632506-1 INTERCHANGEABLE
Magnesium Sulfate,anhydrous
Avantor Performance Materials, Inc.
4730-00-256-43051743 INTERCHANGEABLE
Fitting,lubrication
Gardner Denver Nash Llc Dba Gardner Denver Engineered Products Group Div Gardner Denver Nash
4720-01-541-0418 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
G001-2553GN Prestolite Electric Inc (USA)
G0012553GN Prestolite Electric Inc (USA)
G001-2553GN PRIMARY Prestolite Electric Inc (USA)
2553GN Prestolite Electric Inc (USA)
25061 Prestolite Electric Inc (USA)
Related Parts
5133-00-189-9187INTERCHANGEABLE
DRILL,TWIST
5310-00-208-5469INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
6810-00-241-1163INTERCHANGEABLE
MAGNESIUM SULFATE,ANHYDROUS
2506-1
4730-00-256-4305INTERCHANGEABLE
FITTING,LUBRICATION
1743
4720-01-541-0418INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 2920-00-640-7546?

NSN 2920-00-640-7546 is a Generator,engine Accessory, manufactured by Prestolite Electric Inc, classified under FSC 2920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2920-00-640-7546?

NSN 2920-00-640-7546 has 5 cross-referenced part numbers: G001-2553GN (Prestolite Electric Inc), G0012553GN (Prestolite Electric Inc), G001-2553GN (Prestolite Electric Inc), 2553GN (Prestolite Electric Inc), 25061 (Prestolite Electric Inc).

What NSN replaces 2920-00-640-7546?

There are 5 known substitutes for 2920-00-640-7546: 5133-00-189-9187, 5310-00-208-5469, 6810-00-241-1163 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G001-2553GN?

Key specifications for G001-2553GN: Second Step Diameter: 0.874 INCHES NOMINAL IN; Environmental Protection: CORROSION RESISTANT AND FUNGUS RESISTANT; Mounting Hole Thread Diameter: 0.375 INCHES NOMINAL IN; Distance From End to Keyway Center: 1.250 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2920-00-640-7546 still in active supply?

NSN 2920-00-640-7546 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com