The Generator,engine Accessory, cataloged under National Stock Number 2920-01-030-4238, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is C E Niehoff & Co. Government technical data includes 28 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-030-4238 |
| Primary Part Number | N1026-1 |
| Item Name | Generator,engine Accessory |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | C E Niehoff & Co |
| Status | ACTIVE |
| Distance Between Shaft Center and Bottom Mounting Hole Center | 3.900 INCHES NOMINAL IN |
| Shaft Drive End Style | STRAIGHT SHAFT END, THREADED, W/KEYWAY |
| Distance Between Outside Surfaces of Hinge Bracket | 5.210 INCHES NOMINAL IN |
| Grounding Method | INTERNAL |
| Thread Series | UNEF |
| Distance Between Inside Surfaces of Hinge Bracket | 3.880 INCHES NOMINAL IN |
| Bottom Mounting Hole Diameter | 0.520 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Mounting Style | BRACKET MTD W/THREE MTG HOLES, TOP HOLE THREADED |
| Voltage in Volts | 24.0 |
| Rectifier Location | INTEGRAL |
| Thread Diameter | 0.625 INCHES NOMINAL IN |
| Armature Minimum Speed in RPM at Full Current Output | 8000 |
| Shaft Rotation Direction | CLOCKWISE OR COUNTERCLOCKWISE |
| Mounting Hole Thread Class | 2B |
| Angular Deviation of First Hole From Top Center in Deg | 0.0 |
| Mounting Hole Thread Diameter | 0.500 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Second Step Diameter | 0.874 INCHES NOMINAL IN |
| Mounting Hole Thread Direction | RIGHT-HAND |
| Minimum Current Cut-in Speed in RPM | 1500 |
| Distance Between Shaft Center and Top Mounting Hole Center | 3.900 INCHES NOMINAL IN |
| Mounting Hole Thread Quantity Per Inch | 13 |
| Maximum Rated Armature Speed in RPM | 12000 |
| Ground Polarity Type | NEGATIVE |
| Thread Quantity Per Inch | 18 |
| Submersibility | SUBMERSIBLE |
| Maximum Output Current Rating in Amps | 100.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| N1026-1 PRIMARY | C E Niehoff & Co (USA) |
| Reference | Meaning |
|---|---|
| N-1026 | 5/9 Secondary reference C E Niehoff & Co |
| 683761C91 | 5/9 Secondary reference Komatsu American Intl Co |
| M683761C91 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| M683761C91 | 5/9 Secondary reference U.S. Government activity |
NSN 2920-01-030-4238 is a Generator,engine Accessory, manufactured by C E Niehoff & Co, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-030-4238 has 1 manufacturer part number on file: N1026-1 (C E Niehoff & Co).
Key specifications for N1026-1: Distance Between Shaft Center and Bottom Mounting Hole Center: 3.900 INCHES NOMINAL IN; Shaft Drive End Style: STRAIGHT SHAFT END, THREADED, W/KEYWAY; Distance Between Outside Surfaces of Hinge Bracket: 5.210 INCHES NOMINAL IN; Grounding Method: INTERNAL. 28 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.