PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2303JGenerator,engine Accessory

Prestolite Electric Inc · NSN 2920-00-457-8654 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-00-457-8654 — this item is cataloged by the U.S. Government under National Stock Number 2920-00-457-8654. Primary manufacturer part number: 2303J.
Features
  • Generator,engine Accessory — FSC 2920
  • Keyway Length: 0.562 INCHES NOMINAL IN
  • Thread Length: 0.500 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Keyway Width: 0.156 INCHES NOMINAL IN
  • Grounding Method: INTERNAL
  • Mounting Style: FLANGE MTD W/THREE MTG HOLES
  • Shaft Rotation Direction: CLOCKWISE OR COUNTERCLOCKWISE
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Generator,engine Accessory, cataloged under National Stock Number 2920-00-457-8654, 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 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2920-00-457-8654
Primary Part Number2303J
Item NameGenerator,engine Accessory
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerPrestolite Electric Inc
StatusCANCELLED
Keyway Length0.562 INCHES NOMINAL IN
Thread Length0.500 INCHES NOMINAL IN
Thread Class2A A
Keyway Width0.156 INCHES NOMINAL IN
Grounding MethodINTERNAL
Mounting StyleFLANGE MTD W/THREE MTG HOLES
Shaft Rotation DirectionCLOCKWISE OR COUNTERCLOCKWISE
Pilot Diameter3.125 INCHES NOMINAL IN
Center to Center Distance Between Top Mounting Slot and Bottom Mounting Hole8.000 INCHES NOMINAL IN
SubmersibilityNONSUBMERSIBLE
Bottom Mounting Hole Diameter0.375 INCHES NOMINAL IN
Distance From End to Keyway Center1.125 INCHES NOMINAL IN
Ground Polarity TypeNEGATIVE OR POSITIVE
Shaft Drive End StyleSTRAIGHT SHAFT END, THREADED, W/KEYWAY
Top Mounting Hole Diameter0.375 INCHES NOMINAL IN
Unthreaded Portion Length1.062 INCHES NOMINAL IN
Rectifier LocationINTEGRAL
Center to Center Distance Between Mounting Holes Along Width4.812 INCHES NOMINAL IN
Voltage in Volts28.0
Thread SeriesUNF
Second Step Diameter1.062 INCHES NOMINAL IN
Furnished ItemsLEAD ASSEMBLY AND BUSHING PACKAGE AND COOLING FAN AND NUT AND SCREW
Thread DirectionRIGHT-HAND
Distance Between Shaft Center and Bottom Mounting Hole Center4.375 INCHES NOMINAL IN
Thread Quantity Per Inch20
Pilot Height0.125 INCHES NOMINAL IN
Thread Diameter0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-00-268-7583D828-42 INTERCHANGEABLE
Gasket
Western Sky Industries Inc Dba Electromech Techologies
3110-00-554-3084177009-109 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
2303J PRIMARY Prestolite Electric Inc (USA)
A0012086AA Prestolite Electric Inc (USA)
0624D0304 Arrow-Master, Incorporated (USA)
2086A Prestolite Electric Inc (USA)
2086AA Prestolite Electric Inc (USA)
A0012086AA Prestolite Electric Inc (USA)
210090H1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
2303J Prestolite Electric Inc (USA)
Related Parts
5330-00-268-7583INTERCHANGEABLE
GASKET
D828-42
3110-00-554-3084INTERCHANGEABLE
BEARING,BALL,ANNULAR
177009-109

Frequently Asked Questions

What is NSN 2920-00-457-8654?

NSN 2920-00-457-8654 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 2920-00-457-8654?

NSN 2920-00-457-8654 has 8 cross-referenced part numbers: 2303J (Prestolite Electric Inc), A0012086AA (Prestolite Electric Inc), 0624D0304 (Arrow-Master, Incorporated), 2086A (Prestolite Electric Inc), 2086AA (Prestolite Electric Inc) and 3 more.

What NSN replaces 2920-00-457-8654?

There are 2 known substitutes for 2920-00-457-8654: 5330-00-268-7583, 3110-00-554-3084. Verify interchangeability with system specifications before substitution.

What are the specifications of 2303J?

Key specifications for 2303J: Keyway Length: 0.562 INCHES NOMINAL IN; Thread Length: 0.500 INCHES NOMINAL IN; Thread Class: 2A A; Keyway Width: 0.156 INCHES NOMINAL IN. 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2920-00-457-8654 still in active supply?

NSN 2920-00-457-8654 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.
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