The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-997-9841, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2805-00-997-9841 |
| Primary Part Number | 3831773 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.1875 INCHES NOMINAL THIRD RING IN |
| Ring Groove Width | 0.1960 INCHES NOMINAL FIRST RING IN |
| Ring Groove Width | 0.1960 INCHES NOMINAL SECOND RING IN |
| Distance Between Pin Bosses | 1.266 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Oil Passage Type | SLOT THIRD RING |
| Diameter | 3.875 INCHES NOMINAL IN |
| Ring Groove Diameter | 3.443 INCHES NOMINAL THIRD RING IN |
| Ring Groove Diameter | 3.509 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 3.509 INCHES NOMINAL SECOND RING IN |
| Distance From Pin Hole Center to Extreme Top | 1.938 INCHES NOMINAL IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | INCLUDED |
| Head Style | DISH |
| Ring Groove Quantity | 3 |
| Oversize | 0.020 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 0.9250 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Skirt Type | SOLID |
| Cut Depth | 0.500 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 |
|---|---|
| 149822 | Hyster-Yale Group, Inc. (USA) |
| 3831773 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 116-9108 | 5/9 Secondary reference Lift Parts Mfg Co Inc Div of Echlin Mfg Co the |
| 3831773 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 3831773 | 5/9 Secondary reference General Motors Corp |
NSN 2805-00-997-9841 is a Piston,internal Combustion Engin, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-997-9841 has 2 manufacturer part numbers on file: 149822 (Hyster-Yale Group, Inc.), 3831773 (General Motors Llc Dba General Motors Llc).
Key specifications for 3831773: Overall Height: 3.625 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1875 INCHES NOMINAL THIRD RING IN; Ring Groove Width: 0.1960 INCHES NOMINAL FIRST RING IN. 26 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.