The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-00-175-9475, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Perkins Engines Inc. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2815-00-175-9475 |
| Primary Part Number | 82878 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Perkins Engines Inc |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.0857 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Width | 0.2525 INCHES MINIMUM AND 0.2535 INCHES MAXIMUM SECOND RING IN |
| Distance Between Pin Bosses | 39.9 MILLIMETERS NOMINAL MM |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Ring Groove Position and Quantity | NUMBER 1,NUMBER 2,NUMBER 3,NUMBER 4,AND NUMBER 5 PISTON ALL RINGS |
| Oil Passage Type | HOLE LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 3.875 INCHES NOMINAL IN |
| Ring Groove Diameter | 89.18 MILLIMETERS MINIMUM AND 89.38 MILLIMETERS MAXIMUM SECOND RING MM |
| Ring Groove Diameter | 89.51 MILLIMETERS MINIMUM AND 89.71 MILLIMETERS MAXIMUM FIRST RING MM |
| Distance From Pin Hole Center to Extreme Top | 70.206 MILLIMETERS MINIMUM AND 70.558 MILLIMETERS MAXIMUM MM |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | INCLUDED |
| Head Style | DISH |
| Ring Groove Quantity | 5 |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | INCLUDED |
| Surface Treatment | TIN |
| Pinhole Diameter | 97.805 MILLIMETERS MINIMUM MM |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM ALLOY |
| Skirt Type | SOLID |
| Cut Depth | 1.6 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 676877 | Mitsubishi Caterpillar Forklift America, Inc (USA) |
| 82878 PRIMARY | Perkins Engines Inc (USA) |
| 320-82878 | Tvh Parts Co. (USA) |
| Reference | Meaning |
|---|---|
| 82878 | 5/9 Secondary reference Service Sales of Pittsburgh |
| 82878 | C/1 Advisory reference — outside the item-of-supply concept Perkins Engines Co Ltd |
| 33266115 | D/9 Drawing number reference only Perkins Engines Inc |
| 320-82878 | 5/9 Secondary reference Lift Parts Mfg Co Inc Div of Echlin Mfg Co the |
| 168896 | C/1 Advisory reference — outside the item-of-supply concept Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
| 168896 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
| 000116-8100 | 5/9 Secondary reference Lift Parts Mfg Co Inc Div of Echlin Mfg Co the |
NSN 2815-00-175-9475 is a Piston,internal Combustion Engin, manufactured by Perkins Engines Inc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-175-9475 has 3 manufacturer part numbers on file: 676877 (Mitsubishi Caterpillar Forklift America, Inc), 82878 (Perkins Engines Inc), 320-82878 (Tvh Parts Co.).
1 possible match (shared part number, not a government interchangeability claim): 5340-00-977-0111. Verify interchangeability with system specifications before substitution.
Key specifications for 82878: Overall Height: 4.760 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.0857 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM FIRST RING IN; Ring Groove Width: 0.2525 INCHES MINIMUM AND 0.2535 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.