The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-374-3099, 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 | 2805-00-374-3099 |
| Primary Part Number | DB184AS30 |
| 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 | 0.1890 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Width | 0.0945 INCHES MINIMUM AND 0.0955 INCHES MAXIMUM SECOND RING IN |
| Ring Groove Width | 0.0955 INCHES MINIMUM AND 0.0965 INCHES MAXIMUM FIRST RING IN |
| Ring Groove Width | 0.0945 INCHES MINIMUM AND 0.0955 INCHES MAXIMUM THIRD RING IN |
| Distance Between Pin Bosses | 1.000 INCHES NOMINAL IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Skirt Slot Style | BASE TO GROOVE SLOT |
| Oil Passage Type | HOLE LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 2.500 INCHES NOMINAL IN |
| Ring Groove Diameter | 2.215 INCHES MINIMUM FIFTH RING IN |
| Ring Groove Diameter | 2.225 INCHES MAXIMUM SIXTH RING IN |
| Ring Groove Diameter | 2.255 INCHES MINIMUM THIRD RING IN |
| Ring Groove Diameter | 2.265 INCHES MAXIMUM FOURTH RING IN |
| Ring Groove Diameter | 2.275 INCHES MINIMUM FIRST RING IN |
| Ring Groove Diameter | 2.285 INCHES MAXIMUM SECOND RING IN |
| Distance From Pin Hole Center to Extreme Top | 1.373 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 4 |
| Oversize | 0.030 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | NOT INCLUDED |
| 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 |
|---|---|
| DB184AS30 PRIMARY | Wisconsin Motors, Llc (USA) |
NSN 2805-00-374-3099 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 2805-00-374-3099 has 1 manufacturer part number on file: DB184AS30 (Wisconsin Motors, Llc).
Key specifications for DB184AS30: Overall Height: 2.656 INCHES NOMINAL IN; FSC Application Data: ENGINE,GASOLINE,RECIPROCATING NONAIRCRAFT; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1890 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM FOURTH 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.