The Transmission,hydraulic,vehicular, cataloged under National Stock Number 2520-01-182-3630, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2520-01-182-3630 |
| Primary Part Number | 8640956 |
| Item Name | Transmission,hydraulic,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Design Type | PLANETARY GEAR W/INTEGRAL TORQUE CONVERTER-TRANSFER TRANSMISSION |
| Features Provided | INTEGRAL OIL COOLER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8640956 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| 8640956 | General Motors Corp (USA) |
| CH71M | Barney & White Auto Parts Inc (USA) |
| Reference | Meaning |
|---|---|
| 8640956 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 350 | 5/9 Secondary reference Barney & White Auto Parts Inc |
NSN 2520-01-182-3630 is a Transmission,hydraulic,vehicular, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-182-3630 has 3 manufacturer part numbers on file: 8640956 (General Motors Llc Dba General Motors Llc), 8640956 (General Motors Corp), CH71M (Barney & White Auto Parts Inc).
Key specifications for 8640956: Design Type: PLANETARY GEAR W/INTEGRAL TORQUE CONVERTER-TRANSFER TRANSMISSION; Features Provided: INTEGRAL OIL COOLER; End Item Identification: GENERAL MOTORS CORP,1979 TRUCK 1/2 AND 3/4 TONTRUCK. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.