The Generator,engine Accessory, cataloged under National Stock Number 2920-00-246-3301, 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 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-246-3301 |
| Primary Part Number | 938906 |
| Item Name | Generator,engine Accessory |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Distance Between Shaft Center and Bottom Mounting Hole Center | 3.187 INCHES NOMINAL IN |
| Shaft Drive End Style | STRAIGHT SHAFT END, THREADED, W/KEYWAY |
| Thread Series | UNF |
| Distance From End to Keyway Center | 0.812 INCHES NOMINAL IN |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Bottom Mounting Hole Diameter | 0.437 INCHES NOMINAL IN |
| Mounting Style | FLANGE MTD W/TWO MTG HOLES, TOP HOLE THREADED |
| Voltage in Volts | 12.0 |
| Thread Diameter | 0.625 INCHES NOMINAL IN |
| Shaft Rotation Direction | CLOCKWISE |
| Mounting Hole Thread Class | 2B |
| Angular Deviation of First Hole From Top Center in Deg | 180.0 |
| Mounting Hole Thread Diameter | 0.312 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Second Step Diameter | 0.625 INCHES NOMINAL IN |
| Pilot Diameter | 2.000 INCHES NOMINAL IN |
| Mounting Hole Thread Direction | RIGHT-HAND |
| Pilot Height | 0.312 INCHES NOMINAL IN |
| Keyway Length | 0.500 INCHES NOMINAL IN |
| Distance Between Shaft Center and Top Mounting Hole Center | 3.187 INCHES NOMINAL IN |
| Mounting Hole Thread Quantity Per Inch | 18 |
| Keyway Width | 0.125 INCHES NOMINAL IN |
| Ground Polarity Type | NEGATIVE |
| Thread Quantity Per Inch | 18 |
| Submersibility | NONSUBMERSIBLE |
| Unthreaded Portion Length | 1.062 INCHES NOMINAL IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Angular Deviation of Second Hole From First Hole in Deg | 180.0 |
| Thread Class | 2A A |
| 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 |
|---|---|
| 938906 PRIMARY | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| A12NAM451 | 5/9 Secondary reference Cooper R Jr Inc |
NSN 2920-00-246-3301 is a Generator,engine Accessory, manufactured by Am General Llc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-246-3301 has 1 manufacturer part number on file: 938906 (Am General Llc).
1 possible match (shared part number, not a government interchangeability claim): 2920-00-535-1864. Verify interchangeability with system specifications before substitution.
Key specifications for 938906: Distance Between Shaft Center and Bottom Mounting Hole Center: 3.187 INCHES NOMINAL IN; Shaft Drive End Style: STRAIGHT SHAFT END, THREADED, W/KEYWAY; Thread Series: UNF; Distance From End to Keyway Center: 0.812 INCHES NOMINAL IN. 29 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.