The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-577-8555, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-577-8555 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.1875 INCHES NOMINAL THIRD RING IN |
| Ring Groove Width | 0.0625 INCHES NOMINAL FIRST RING IN |
| Ring Groove Width | 0.0625 INCHES NOMINAL SECOND RING IN |
| Distance Between Pin Bosses | 2.000 INCHES NOMINAL IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Oil Passage Type | HOLE LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 4.125 INCHES NOMINAL IN |
| Ring Groove Diameter | 3.687 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 3.687 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 3.687 INCHES NOMINAL THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 2.000 INCHES NOMINAL IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | CONCAVE |
| Ring Groove Quantity | 3 |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | INCLUDED |
| Pinhole Diameter | 1.2500 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM ALLOY |
| Skirt Type | SOLID |
| Cut Depth | 0.375 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 |
| Reference | Meaning |
|---|---|
| D2JL6108E | 3/9 Design control — primary reference Ford Motor Company |
| D2JL6108E | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| D2JL6108E | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 2815-00-577-8555 is a Piston,internal Combustion Engin, classified under FSC 2815, Diesel Engines and Components. Status: active.
Key specifications for 2815-00-577-8555: Overall Height: 3.312 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1875 INCHES NOMINAL THIRD RING IN; Ring Groove Width: 0.0625 INCHES NOMINAL FIRST RING IN. 26 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.