The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-428-2054, 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 Wisconsin Motors, Llc. Government technical data includes 28 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 | 2805-00-428-2054 |
| Primary Part Number | DB190AS20 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Wisconsin Motors, Llc |
| Status | ACTIVE |
| FSC Application Data | ENGINE,GASOLINE,RECIPROCATING,NONAIRCRAFT |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.0955 INCHES NOMINAL SECOND RING IN |
| Ring Groove Width | 0.0955 INCHES NOMINAL THIRD RING IN |
| Ring Groove Width | 0.0965 INCHES NOMINAL FIRST RING IN |
| Distance Between Pin Bosses | 1.375 INCHES NOMINAL IN |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Ring Groove Position and Quantity | NO. 1,NO. 2 AND NO. 3 PISTON ALL RINGS |
| Skirt Slot Style | BASE TO GROOVE SLOT |
| Oil Passage Type | HOLE ALL RINGS |
| Diameter | 3.250 INCHES NOMINAL IN |
| Ring Groove Diameter | 2.094 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 2.969 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 2.969 INCHES NOMINAL THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 1.500 INCHES NOMINAL IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Head Style | HAT |
| Ring Groove Quantity | 3 |
| Oversize | 0.020 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 0.7500 INCHES NOMINAL IN |
| Pin Hole Bushing | INCLUDED |
| Material | ALUMINUM |
| Skirt Type | FULL SPLIT |
| 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 |
|---|---|
| DB190AS20 PRIMARY | Wisconsin Motors, Llc (USA) |
NSN 2805-00-428-2054 is a Piston,internal Combustion Engin, manufactured by Wisconsin Motors, Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-428-2054 has 1 manufacturer part number on file: DB190AS20 (Wisconsin Motors, Llc).
Key specifications for DB190AS20: Overall Height: 3.125 INCHES NOMINAL IN; FSC Application Data: ENGINE,GASOLINE,RECIPROCATING,NONAIRCRAFT; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.0955 INCHES NOMINAL SECOND RING IN. 28 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.