The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-00-378-9782, 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 Briggs and Stratton Corp. Government technical data includes 25 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-378-9782 |
| Primary Part Number | 291924 |
| Item Name | Piston,internal Combustion Engin |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Briggs and Stratton Corp |
| Status | ACTIVE |
| FSC Application Data | GASOLINE ENGINE,EXCEPT AIRCRAFT PRIME MOVER TYPE |
| Carbon Groove | NOT INCLUDED |
| Ring Groove Width | 0.1280 INCHES NOMINAL AND 0.1270 INCHES NOMINAL AND 0.1885 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Distance Between Pin Bosses | 1.094 INCHES NOMINAL IN |
| Retaining Ring Groove | INCLUDED |
| Surface Finish | FINISHED |
| Oil Passage Type | SLOT LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 2.250 INCHES NOMINAL IN |
| Ring Groove Diameter | 2.027 INCHES NOMINAL FIRST RING IN |
| Ring Groove Diameter | 2.027 INCHES NOMINAL SECOND RING IN |
| Ring Groove Diameter | 2.036 INCHES NOMINAL THIRD RING IN |
| Distance From Pin Hole Center to Extreme Top | 1.197 INCHES NOMINAL IN |
| Pin | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 3 |
| Oversize | 0.030 INCHES NOMINAL IN |
| Skirt Bottom Cutaway Feature | NOT INCLUDED |
| Finished Size Designation | OVERSIZE |
| Ring | INCLUDED |
| Pinhole Diameter | 0.4640 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 |
| Part Number | Manufacturer |
|---|---|
| 291924 PRIMARY | Briggs and Stratton Corp (USA) |
NSN 2805-00-378-9782 is a Piston,internal Combustion Engin, manufactured by Briggs and Stratton Corp, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-378-9782 has 1 manufacturer part number on file: 291924 (Briggs and Stratton Corp).
2 possible matches (shared part number, not a government interchangeability claim): 2520-01-108-5381, 5305-01-136-1739. Verify interchangeability with system specifications before substitution.
Key specifications for 291924: Overall Height: 2.250 INCHES NOMINAL IN; FSC Application Data: GASOLINE ENGINE,EXCEPT AIRCRAFT PRIME MOVER TYPE; Carbon Groove: NOT INCLUDED; Ring Groove Width: 0.1280 INCHES NOMINAL AND 0.1270 INCHES NOMINAL AND 0.1885 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN. 25 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.