The Generator Assembly, cataloged under National Stock Number 2920-01-556-6876, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-556-6876 |
| Primary Part Number | 424-6821 |
| Item Name | Generator Assembly |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| 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 |
|---|---|
| A22799 | Unac (FRA) |
| U-MOT-TNA-010 | Unac (FRA) |
| 424-6821 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 346-9826 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
| 2253146 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 2920-01-556-6876 is a Generator Assembly, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-556-6876 has 3 manufacturer part numbers on file: A22799 (Unac), U-MOT-TNA-010 (Unac), 424-6821 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 424-6821: Special Features: ALTERNATOR; Part Name Assigned by Controlling Agency: BUSHING, ALTERNATOR; End Item Identification: CONSTRUCTION EQUIPMENT. 0 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.