The Transmission,hydraulic,vehicular, cataloged under National Stock Number 2520-01-164-1933, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-164-1933 |
| Primary Part Number | 23040023 |
| Item Name | Transmission,hydraulic,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| 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 |
|---|---|
| 23040023 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 23014313 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 6884346 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 2520-01-164-1933 is a Transmission,hydraulic,vehicular, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-164-1933 has 1 manufacturer part number on file: 23040023 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 23040023: Design Type: PLANETARY GEAR W/INTEGRAL TORQUE CONVERTER-TRANSFER TRANSMISSION; Features Provided: INTEGRAL OIL COOLER; End Item Identification: TRANSMISSION MODEL MT 643,USED ON BUSES AND GARBAGE TRUCKS. 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.