PartsTable TECHNICAL DATA SHEET
NSN 2805-01-421-4668Government record, cited

Piston, Internal Combustion Engin2805-01-421-4668

NSN 2805-01-421-4668 · NIIN 014214668 · Part number 434503
Brp Us Inc · FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 1UVT5
Government record, cited
NSN 2805-01-421-4668 — this item is cataloged by the U.S. Government under National Stock Number 2805-01-421-4668. Manufacturer of record part number: 434503.
Also searched as  2805-01-421-4668 · 2805014214668 · NIIN 014214668 · 01-421-4668 · FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components · CAGE 1UVT5 · 434503
Nearby stock numbers  ·
Features
  • Piston,internal Combustion Engin — FSC 2805
  • Pin: NOT INCLUDED
  • Skirt Bottom Cutaway Feature: INCLUDED
  • Finished Size Designation: STANDARD
  • 1 manufacturer part number on file
  • Manufacturer of record: Brp Us Inc
Identification
  • NSN: 2805-01-421-4668
  • NIIN: 014214668
  • FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: 434503
  • Manufacturer: Brp Us Inc
General Description

The Piston,internal Combustion Engin, cataloged under National Stock Number 2805-01-421-4668, 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 Brp Us Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-01-421-4668
Primary Part Number434503
Item NamePiston,internal Combustion Engin
FSC / FSG2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components
ManufacturerBrp Us Inc
StatusACTIVE
PinNOT INCLUDED
Skirt Bottom Cutaway FeatureINCLUDED
Finished Size DesignationSTANDARD
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
434503 PRIMARY Brp Us Inc (USA)
Reference documents
ReferenceMeaning
434503 5/9 Secondary reference
U.S. Government activity
434503 5/9 Secondary reference
Evinrude Motors Product Group of Outboard Marine Corp
434503 5/9 Secondary reference
Outboard Marine Corp Johnson Motors Div
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 2805-01-421-4668?

NSN 2805-01-421-4668 is a Piston,internal Combustion Engin, manufactured by Brp Us Inc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.

What part numbers are listed for NSN 2805-01-421-4668?

NSN 2805-01-421-4668 has 1 manufacturer part number on file: 434503 (Brp Us Inc).

What are the specifications of 434503?

Key specifications for 434503: Pin: NOT INCLUDED; Skirt Bottom Cutaway Feature: INCLUDED; Finished Size Designation: STANDARD; Special Features: PORT. 3 specifications are documented in the U.S. Government catalog.

Is NSN 2805-01-421-4668 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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