The Generator,engine Accessory, cataloged under National Stock Number 2920-00-844-7669, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Prestolite Electric Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-00-844-7669 |
| Primary Part Number | 8MR42N24 |
| Item Name | Generator,engine Accessory |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Distance Between Shaft Center and Bottom Mounting Hole Center | 3.280 INCHES NOMINAL IN |
| Shaft Drive End Style | STRAIGHT SHAFT END, THREADED, W/KEYWAY |
| Bottom Mounting Hole Diameter | 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Criticality Code Justification | FEAT |
| Voltage in Volts | 24.0 |
| Rectifier Location | INTEGRAL |
| Mounting Hole Thread Class | 2B |
| Mounting Hole Thread Diameter | 0.312 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Mounting Hole Thread Direction | RIGHT-HAND |
| Mounting Hole Thread Quantity Per Inch | 18 |
| Ground Polarity Type | NEGATIVE |
| Center to Center Distance Between Top Mounting Slot and Bottom Mounting Hole | 6.520 INCHES NOMINAL IN |
| Submersibility | NONSUBMERSIBLE |
| Furnished Items | COOLING FAN AND DRIVE PULLEY AND LOCKWASHER AND NUT AND VOLTAGE REGULATOR AND WOODRUFF KEY |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 8MR42N24 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| A35N24 | 5/9 Secondary reference U.S. Government activity |
| 8EM42N24 | 5/9 Secondary reference Motorola Automotive Electronics |
| 8EM42N24 | 5/9 Secondary reference Prestolite Electric Inc |
| 8MR42N24 | 5/9 Secondary reference Prestolite Electric Inc |
| A35N24 | 5/9 Secondary reference Motorola Automotive Electronics |
| A35N24 | 5/9 Secondary reference Cooper R Jr Inc |
NSN 2920-00-844-7669 is a Generator,engine Accessory, manufactured by Prestolite Electric Inc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-00-844-7669 has 1 manufacturer part number on file: 8MR42N24 (Prestolite Electric Inc).
Key specifications for 8MR42N24: Distance Between Shaft Center and Bottom Mounting Hole Center: 3.280 INCHES NOMINAL IN; Shaft Drive End Style: STRAIGHT SHAFT END, THREADED, W/KEYWAY; Bottom Mounting Hole Diameter: 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Criticality Code Justification: FEAT. 16 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.