The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-01-032-4986, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is General Electric Company. Government technical data includes 24 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-032-4986 |
| Primary Part Number | 142X1040-1 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Ring Groove Width | 0.1875 INCHES NOMINAL FOURTH RING IN |
| Ring Groove Width | 0.1875 INCHES NOMINAL THIRD RING IN |
| Ring Groove Width | 0.1875 INCHES NOMINAL FIRST RING IN |
| Ring Groove Width | 0.1875 INCHES NOMINAL SECOND RING IN |
| Ring Groove Width | 0.3125 INCHES NOMINAL FIFTH RING IN |
| Ring Groove Width | 0.3125 INCHES NOMINAL SIXTH RING IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHEDFINISHED |
| Diameter | 10.477 INCHES MINIMUM AND 10.477 INCHES MINIMUM AND 10.480 INCHES MAXIMUM10.480 INCHES MAXIMUM IN |
| Ring Groove Diameter | 9.5770 INCHES NOMINAL FIFTH RING IN |
| Ring Groove Diameter | 9.5770 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 9.5770 INCHES NOMINAL FOURTH RING IN |
| Ring Groove Diameter | 9.5770 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 9.5770 INCHES NOMINAL SIXTH RING IN |
| Ring Groove Diameter | 9.5770 INCHES NOMINAL THIRD RING IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Head Style | FLATFLAT |
| Ring Groove Quantity | 66 |
| Skirt Bottom Cutaway Feature | NOT INCLUDEDNOT INCLUDED |
| Finished Size Designation | STANDARDSTANDARD |
| Ring | NOT INCLUDED |
| Material | ALUMINUM AND STEEL |
| Skirt Type | SOLIDSOLID |
| 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 |
|---|---|
| 142X1040-1 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 142X1040-2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 142X1040-2 | 5/9 Secondary reference General Electric Company |
| 142X1040-2 | C/1 Advisory reference — outside the item-of-supply concept General Electric Co Speed Variator Products Operation |
| 142X1050 | 5/9 Secondary reference U.S. Government activity |
| 142X1050 | 5/9 Secondary reference General Electric Company |
NSN 2815-01-032-4986 is a Piston,internal Combustion Engin, manufactured by General Electric Company, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-032-4986 has 1 manufacturer part number on file: 142X1040-1 (General Electric Company).
Key specifications for 142X1040-1: Overall Height: 17.375 INCHES NOMINAL17.375 INCHES NOMINAL IN; Ring Groove Width: 0.1875 INCHES NOMINAL FOURTH RING IN; Ring Groove Width: 0.1875 INCHES NOMINAL THIRD RING IN; Ring Groove Width: 0.1875 INCHES NOMINAL FIRST RING IN. 24 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.