The Piston,internal Combustion Engin, cataloged under National Stock Number 2815-01-192-8476, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Deere & Co. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-192-8476 |
| Primary Part Number | AR55984 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Deere & Co |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.2656 INCHES NOMINAL AND 0.2000 INCHES NOMINAL AND 0.2156 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Distance Between Pin Bosses | 3.9844 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Diameter | 4.250 INCHES NOMINAL IN |
| Ring Groove Diameter | 3.604 INCHES NOMINAL AND 3.640 INCHES NOMINAL AND 3.570 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Distance From Pin Hole Center to Extreme Top | 1.880 INCHES NOMINAL IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | LOCKING |
| Oil Groove | NOT INCLUDED |
| Head Style | CAVITY |
| Ring Groove Quantity | 3 |
| Oversize | 0.010 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 1.3750 INCHES NOMINAL IN |
| Pin Hole Bushing | INCLUDED |
| Material | ALUMINUM |
| Skirt Type | SOLID |
| Cut Depth | 0.430 INCHES NOMINAL IN |
| 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 |
|---|---|
| AR55984 | Deere & Co (USA) |
| Reference | Meaning |
|---|---|
| 39065A | 5/9 Secondary reference M & S Cartage Inc |
| XVE4936D4 | 3/9 Design control — primary reference U.S. Government activity |
| AR55984 | C/1 Advisory reference — outside the item-of-supply concept Deere & Company Dba John Deere Dubuque Works Div John Deere Dubuque Works |
NSN 2815-01-192-8476 is a Piston,internal Combustion Engin, manufactured by Deere & Co, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-192-8476 has 1 manufacturer part number on file: AR55984 (Deere & Co).
Key specifications for AR55984: Overall Height: 4.410 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.2656 INCHES NOMINAL AND 0.2000 INCHES NOMINAL AND 0.2156 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Distance Between Pin Bosses: 3.9844 INCHES NOMINAL 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.