The Generator,engine Accessory, cataloged under National Stock Number 2920-01-024-3799, 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 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-024-3799 |
| Primary Part Number | A505-C |
| 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 | 4.688 INCHES NOMINAL IN |
| Top Mounting Hole Diameter | 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN |
| Grounding Method | EXTERNAL |
| Bottom Mounting Hole Diameter | 0.441 INCHES MINIMUM AND 0.461 INCHES MAXIMUM IN |
| Mounting Style | FLANGE MTD W/THREE MTG HOLES |
| Rectifier Location | INTEGRAL |
| Shaft Rotation Direction | CLOCKWISE |
| Center to Center Distance Between Mounting Holes Along Width | 7.000 INCHES NOMINAL IN |
| Submersibility | NONSUBMERSIBLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A505-C | C E Niehoff & Co (USA) |
| Reference | Meaning |
|---|---|
| 2589625 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2920-01-024-3799 is a Generator,engine Accessory, manufactured by C E Niehoff & Co, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-024-3799 has 1 manufacturer part number on file: A505-C (C E Niehoff & Co).
Key specifications for A505-C: Distance Between Shaft Center and Bottom Mounting Hole Center: 4.688 INCHES NOMINAL IN; Top Mounting Hole Diameter: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN; Grounding Method: EXTERNAL; Bottom Mounting Hole Diameter: 0.441 INCHES MINIMUM AND 0.461 INCHES MAXIMUM IN. 9 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.
NSN 2920-01-024-3799 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.