The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-005-7530, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Wisconsin Motors, Llc. 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 | 2815-00-005-7530 |
| Primary Part Number | 280505AU |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Wisconsin Motors, Llc |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.1000 INCHES NOMINAL FIRST RING IN |
| Ring Groove Width | 0.1000 INCHES NOMINAL SECOND RING IN |
| Ring Groove Width | 0.1560 INCHES NOMINAL FOURTH RING IN |
| Ring Groove Width | 0.1560 INCHES NOMINAL THIRD RING IN |
| Distance Between Pin Bosses | 1.375 INCHES NOMINAL IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Ring Groove Position and Quantity | NUMBER 1,NUMBER 2,AND NUMBER 3,NUMBER 4 PISTON ALL RINGS |
| Oil Passage Type | HOLE LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 3.375 INCHES NOMINAL IN |
| Ring Groove Diameter | 3.045 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Distance From Pin Hole Center to Extreme Top | 2.160 INCHES NOMINAL IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 4 |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | INCLUDED |
| Pinhole Diameter | 1.1800 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM ALLOY |
| Skirt Type | SOLID |
| Cut Depth | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| 280505AU PRIMARY | Wisconsin Motors, Llc (USA) |
NSN 2815-00-005-7530 is a Piston,internal Combustion Engin, manufactured by Wisconsin Motors, Llc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-005-7530 has 1 manufacturer part number on file: 280505AU (Wisconsin Motors, Llc).
Key specifications for 280505AU: Overall Height: 3.938 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1000 INCHES NOMINAL FIRST RING IN; Ring Groove Width: 0.1000 INCHES NOMINAL 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.