The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-300-6969, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-300-6969 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Status | ACTIVE |
| Carbon Groove | INCLUDED |
| Ring Groove Width | 0.1875 INCHES NOMINAL FOURTH RING IN |
| Ring Groove Width | 0.1250 INCHES NOMINAL FIRST RING IN |
| Ring Groove Width | 0.1250 INCHES NOMINAL SECOND RING IN |
| Ring Groove Width | 0.1250 INCHES NOMINAL THIRD RING IN |
| Distance Between Pin Bosses | 1.250 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Oil Passage Type | HOLE LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 4.812 INCHES NOMINAL IN |
| Ring Groove Diameter | 4.374 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 4.374 INCHES NOMINAL FOURTH RING IN |
| Ring Groove Diameter | 4.374 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 4.374 INCHES NOMINAL THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 3.625 INCHES NOMINAL IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | INCLUDED |
| Head Style | CAVITY |
| Ring Groove Quantity | 4 |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 2.0000 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | STEEL |
| Skirt Type | SOLID |
| 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 |
|---|---|
| 240GC1550P1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2815-00-300-6969 is a Piston,internal Combustion Engin, classified under FSC 2815, Diesel Engines and Components. Status: active.
Key specifications for 2815-00-300-6969: Overall Height: 5.438 INCHES NOMINAL IN; Carbon Groove: INCLUDED; Ring Groove Width: 0.1875 INCHES NOMINAL FOURTH RING IN; Ring Groove Width: 0.1250 INCHES NOMINAL FIRST RING IN. 27 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.