PartsTable TECHNICAL DATA SHEET
NSN 2805-00-412-3880Government record, cited

Power Unit, Gasoline2805-00-412-3880

NSN 2805-00-412-3880 · NIIN 004123880 · Part number BKNSPEC129724
Wisconsin Motors, Llc · FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 66289
Government record, cited
NSN 2805-00-412-3880 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-412-3880. Manufacturer of record part number: BKNSPEC129724.
Also searched as  2805-00-412-3880 · 2805004123880 · NIIN 004123880 · 00-412-3880 · FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components · CAGE 66289 · BKNSPEC129724
Nearby stock numbers  ·
Features
  • Power Unit,gasoline — FSC 2805
  • Dual Ignition System: NOT INCLUDED
  • Strokes Per Cycle: 4
  • Inclosure Type: OPEN
  • Closed System Hull Cooling Feature: NOT INCLUDED
  • Electromagnetic Interference Suppression: NOT PROVIDED
  • Main Power Takeoff Rotation Direction: COUNTERCLOCKWISE
  • Cylinder Head Type: L-HEAD
Identification
  • NSN: 2805-00-412-3880
  • NIIN: 004123880
  • FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: BKNSPEC129724
  • Manufacturer: Wisconsin Motors, Llc
General Description

The Power Unit,gasoline, cataloged under National Stock Number 2805-00-412-3880, 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 23 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.

Technical Specifications
ParameterValue
NSN2805-00-412-3880
Primary Part NumberBKNSPEC129724
Item NamePower Unit,gasoline
FSC / FSG2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components
ManufacturerWisconsin Motors, Llc
StatusACTIVE
Dual Ignition SystemNOT INCLUDED
Strokes Per Cycle4
Inclosure TypeOPEN
Closed System Hull Cooling FeatureNOT INCLUDED
Electromagnetic Interference SuppressionNOT PROVIDED
Main Power Takeoff Rotation DirectionCOUNTERCLOCKWISE
Cylinder Head TypeL-HEAD
TransmissionNOT INCLUDED
Crankshaft Rotation DirectionCOUNTERCLOCKWISE
SuperchargerNOT INCLUDED
Starting MethodMANUAL
ClutchNOT INCLUDED
Fuel Induction TypeCARBURETOR
Reduction GearNOT INCLUDED
Cylinder Quantity1
Cylinder ArrangementVERTICAL SINGLE CYLINDER
Brake Horsepower at Specified RPM7 BHP AT 3600 RPM RPM
Standard Bore Diameter2.875 INCHES IN
Stroke Length2.750 INCHES IN
Cooling MediumAIR
Mounting TypeBASE
Ignition TypeMAGNETO
Governor Controlled FeatureINCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
BKNSPEC129724 PRIMARY Wisconsin Motors, Llc (USA)
No interchangeability data on file.
Other items in FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2805-00-010-2959
2805-00-010-2959 · Item name not on file
2805-00-066-3426
TAPPET,ENGINE POPPET VALVE
2805-00-326-0797
SPRING,COUPLING FLA
2805-00-395-7778
BALL,BY-PASS VALVE
2805-00-422-9321
RING SET,PISTON
2805-00-447-9114
VALVE,POPPET,ENGINE
2805-00-448-0786
CAMSHAFT
2805-00-561-9463
GUIDE,VALVE STEM

Frequently Asked Questions

What is NSN 2805-00-412-3880?

NSN 2805-00-412-3880 is a Power Unit,gasoline, manufactured by Wisconsin Motors, Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.

What part numbers are listed for NSN 2805-00-412-3880?

NSN 2805-00-412-3880 has 1 manufacturer part number on file: BKNSPEC129724 (Wisconsin Motors, Llc).

What are the specifications of BKNSPEC129724?

Key specifications for BKNSPEC129724: Dual Ignition System: NOT INCLUDED; Strokes Per Cycle: 4; Inclosure Type: OPEN; Closed System Hull Cooling Feature: NOT INCLUDED. 23 specifications are documented in the U.S. Government catalog.

Is NSN 2805-00-412-3880 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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