The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-211-5294, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 27 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-211-5294 |
| Primary Part Number | 10865369-1 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Width | 0.0980 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Width | 0.0980 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM THIRD RING IN |
| Ring Groove Width | 0.0995 INCHES MINIMUM AND 0.1005 INCHES MAXIMUM FIRST RING IN |
| Distance Between Pin Bosses | 1.890 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Diameter | 5.748 INCHES MINIMUM AND 5.758 INCHES MAXIMUM IN |
| Ring Groove Diameter | 5.179 INCHES MINIMUM AND 5.189 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Diameter | 5.220 INCHES MINIMUM AND 5.230 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Diameter | 5.220 INCHES MINIMUM AND 5.230 INCHES MAXIMUM THIRD RING IN |
| Ring Groove Diameter | 5.221 INCHES MINIMUM AND 5.226 INCHES MAXIMUM FIRST RING IN |
| Distance From Pin Hole Center to Extreme Top | 4.344 INCHES MINIMUM AND 4.354 INCHES MAXIMUM IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | CAVITY |
| Ring Groove Quantity | 4 |
| Oversize | 0.010 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 2.0018 INCHES MINIMUM AND 2.0020 INCHES MAXIMUM IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM ALLOY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 10865369-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 2815-00-211-5294 is a Piston,internal Combustion Engin, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-211-5294 has 1 manufacturer part number on file: 10865369-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10865369-1: Overall Height: 6.464 INCHES MINIMUM AND 6.474 INCHES MAXIMUM IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FOURTH RING IN; Ring Groove Width: 0.0980 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM SECOND 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.