The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-978-7294, 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 John Deer Consumer Products Inc. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-978-7294 |
| Primary Part Number | A58903C |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | John Deer Consumer Products Inc |
| Status | ACTIVE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.06250 INCHES NOMINAL FIRST RING IN |
| Ring Groove Width | 0.06250 INCHES NOMINAL SECOND RING IN |
| Distance Between Pin Bosses | 0.625 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | SEMIFINISHED |
| Diameter | 1.750 INCHES NOMINAL IN |
| Ring Groove Diameter | 1.562 INCHES NOMINAL ALL RINGS IN |
| Distance From Pin Hole Center to Extreme Top | 0.750 INCHES NOMINAL IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | LOCKING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 2 |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Ring | INCLUDED |
| Pinhole Diameter | 0.3750 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | ALUMINUM |
| 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 |
NSN 2805-00-978-7294 is a Piston,internal Combustion Engin, manufactured by John Deer Consumer Products Inc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-978-7294 has 2 manufacturer part numbers on file: A64056 (John Deer Consumer Products Inc), A58903C (John Deer Consumer Products Inc).
Key specifications for A58903C: Overall Height: 1.500 INCHES NOMINAL IN; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.06250 INCHES NOMINAL FIRST RING IN; Ring Groove Width: 0.06250 INCHES NOMINAL SECOND RING IN. 20 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.