The Engine Block Assembly,diesel, cataloged under National Stock Number 2815-01-386-4057, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2815-01-386-4057 |
| Primary Part Number | 40023699 |
| Item Name | Engine Block Assembly,diesel |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc |
| Status | ACTIVE |
| Engine Design Control Activity | 72915 |
| Cylinder Quantity | 16 |
| Bore Diameter | 9.0625 INCHES NOMINAL IN |
| 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 |
|---|---|
| 40023699 PRIMARY | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 40023699 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
NSN 2815-01-386-4057 is a Engine Block Assembly,diesel, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-386-4057 has 1 manufacturer part number on file: 40023699 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc).
Key specifications for 40023699: Engine Design Control Activity: 72915; Cylinder Quantity: 16; Bore Diameter: 9.0625 INCHES NOMINAL IN. 3 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.