The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-024-4612, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Lister Petter Ltd. Government technical data includes 22 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-024-4612 |
| Primary Part Number | 572-50124 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Lister Petter Ltd |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| 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 |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | SEMIFINISHED |
| Ring Groove Position and Quantity | NUMBER 1,NUMBER 2 AND NUMBER 3 PISTON ALL RINGS |
| Diameter | 4.250 INCHES NOMINAL IN |
| Ring Groove Diameter | 3.875 INCHES NOMINAL ALL RINGS IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 5 |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | INCLUDED |
| Pinhole Diameter | 1.3125 INCHES NOMINAL IN |
| Pin Hole Bushing | INCLUDED |
| Material | ALUMINUM |
| Skirt Type | SOLID |
| Unable to Decode | UNABLE TO DECODE |
| 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 |
|---|---|
| 572-50124 PRIMARY | Lister Petter Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 572-50122 | C/1 Advisory reference — outside the item-of-supply concept Astec America Inc. |
| 572-50122 | 5/9 Secondary reference Lister Petter Ltd |
| 572-50122 | C/1 Advisory reference — outside the item-of-supply concept Curtis Engine & Equipment Company, Inc. Dba Curtis Engine & Equipment |
NSN 2815-00-024-4612 is a Piston,internal Combustion Engin, manufactured by Lister Petter Ltd, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-024-4612 has 1 manufacturer part number on file: 572-50124 (Lister Petter Ltd).
1 possible match (shared part number, not a government interchangeability claim): 2815-01-311-8231. Verify interchangeability with system specifications before substitution.
Key specifications for 572-50124: Overall Height: 5.000 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1250 INCHES NOMINAL FIRST RING IN; Ring Groove Width: 0.1250 INCHES NOMINAL SECOND RING IN. 22 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.