The Generator,engine Accessory, cataloged under National Stock Number 2920-00-112-7604, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-112-7604 |
| Primary Part Number | 1963777 |
| Item Name | Generator,engine Accessory |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Distance Between Shaft Center and Bottom Mounting Hole Center | 3.250 INCHES NOMINAL IN |
| Shaft Drive End Style | STRAIGHT SHAFT END, THREADED |
| Thread Series | UNEF |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Bottom Mounting Hole Diameter | 0.375 INCHES NOMINAL IN |
| Mounting Style | FLANGE MTD W/TWO MTG HOLES, TOP HOLE THREADED |
| Voltage in Volts | 12.0 |
| Rectifier Location | INTEGRAL |
| Thread Diameter | 0.625 INCHES NOMINAL IN |
| Shaft Rotation Direction | CLOCKWISE |
| Angular Deviation of First Hole From Top Center in Deg | 0.0 |
| Mounting Hole Thread Diameter | 0.313 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Second Step Diameter | 0.672 INCHES NOMINAL IN |
| Pilot Diameter | 0.875 INCHES NOMINAL IN |
| Pilot Height | 0.094 INCHES NOMINAL IN |
| Distance Between Shaft Center and Top Mounting Hole Center | 3.375 INCHES NOMINAL IN |
| Mounting Hole Thread Quantity Per Inch | 18 |
| Thread Quantity Per Inch | 24 |
| Submersibility | NONSUBMERSIBLE |
| Unthreaded Portion Length | 0.688 INCHES NOMINAL IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Angular Deviation of Second Hole From First Hole in Deg | 180.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1963777 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 1963777 | 5/9 Secondary reference General Motors Corp |
| 1963777 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 2920-00-112-7604 is a Generator,engine Accessory, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-112-7604 has 1 manufacturer part number on file: 1963777 (General Motors Llc Dba General Motors Llc).
Key specifications for 1963777: Distance Between Shaft Center and Bottom Mounting Hole Center: 3.250 INCHES NOMINAL IN; Shaft Drive End Style: STRAIGHT SHAFT END, THREADED; Thread Series: UNEF; Thread Length: 0.375 INCHES NOMINAL IN. 23 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.