The Generator,engine Accessory, cataloged under National Stock Number 2920-00-042-4574, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Am General Llc. Government technical data includes 21 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-042-4574 |
| Primary Part Number | 934480 |
| Item Name | Generator,engine Accessory |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Shaft Drive End Style | STRAIGHT SHAFT END, THREADED, W/KEYWAY |
| Thread Series | UN |
| Distance From End to Keyway Center | 1.000 INCHES NOMINAL IN |
| Thread Length | 0.562 INCHES NOMINAL IN |
| Bottom Mounting Hole Diameter | 0.375 INCHES NOMINAL IN |
| Mounting Style | BRACKET MTD W/FOUR MTG HOLES, TWO TOP HOLES THREADED |
| Voltage in Volts | 12.0 |
| Thread Diameter | 0.625 INCHES NOMINAL IN |
| Angular Deviation of Third Hole From Second Hole in Deg | 45.0 |
| Mounting Hole Thread Diameter | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Second Step Diameter | 0.671 INCHES NOMINAL IN |
| Keyway Length | 0.562 INCHES NOMINAL IN |
| Distance Between Shaft Center and Top Mounting Hole Center | 3.500 INCHES NOMINAL IN |
| Mounting Hole Thread Quantity Per Inch | 16 |
| Keyway Width | 0.158 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 20 |
| Submersibility | NONSUBMERSIBLE |
| Unthreaded Portion Length | 0.625 INCHES NOMINAL IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Angular Deviation of Second Hole From First Hole in Deg | 155.0 |
| 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 |
|---|---|
| 934480 PRIMARY | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 929834 | 5/9 Secondary reference Am General Llc |
| 929837 | 5/9 Secondary reference Am General Llc |
| 926549 | 5/9 Secondary reference Am General Llc |
NSN 2920-00-042-4574 is a Generator,engine Accessory, manufactured by Am General Llc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-042-4574 has 1 manufacturer part number on file: 934480 (Am General Llc).
Key specifications for 934480: Shaft Drive End Style: STRAIGHT SHAFT END, THREADED, W/KEYWAY; Thread Series: UN; Distance From End to Keyway Center: 1.000 INCHES NOMINAL IN; Thread Length: 0.562 INCHES NOMINAL IN. 21 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.