The Generator,engine Accessory, cataloged under National Stock Number 2920-01-080-0622, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. Government technical data includes 30 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-080-0622 |
| Item Name | Generator,engine Accessory |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Status | ACTIVE |
| Distance Between Shaft Center and Bottom Mounting Hole Center | 3.156 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 | 0.530 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 |
| Mounting Hole Thread Class | 2B |
| 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 | 0.625 INCHES NOMINAL IN |
| Pilot Diameter | 2.000 INCHES NOMINAL IN |
| Mounting Hole Thread Direction | RIGHT-HAND |
| Pilot Height | 0.313 INCHES NOMINAL IN |
| Keyway Length | 0.535 INCHES NOMINAL IN |
| Distance Between Shaft Center and Top Mounting Hole Center | 3.156 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 | 1.000 INCHES NOMINAL IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Angular Deviation of Second Hole From First Hole in Deg | 0.0 |
| 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 |
| Reference | Meaning |
|---|---|
| B-78403A1 | 5/9 Secondary reference U.S. Government activity |
| 78403A 2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2920-01-080-0622 is a Generator,engine Accessory, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
Key specifications for 2920-01-080-0622: Distance Between Shaft Center and Bottom Mounting Hole Center: 3.156 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. 30 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.