Rotor, Engine Poppet Valve2805-01-066-5405

NSN 2805-01-066-5405 · NIIN 010665405

FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components · FSG 28 — Engines, Turbines, and Components

Government record, cited

Also searched as 2805-01-066-5405 · 2805010665405 · NIIN 010665405 · 01-066-5405 · FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components

Nearby stock numbers ← 2805-01-066-4038 · 2805-01-066-9295 Ring Set, Piston →

Features

Rotor,engine Poppet Valve — FSC 2805
First Step Diameter: 0.968 INCHES NOMINAL IN
Second Step Length: 0.290 INCHES NOMINAL IN
Style Designator: POSITIVE TYPE-STRAIGHT BORE
Rotation Direction: CLOCKWISE AND COUNTERCLOCKWISE
Distance From End to Nearest Step: 0.062 INCHES NOMINAL IN
Second Step Diameter: 1.682 INCHES NOMINAL IN
First Step Length: 0.062 INCHES NOMINAL IN

Identification

NSN: 2805-01-066-5405
NIIN: 010665405
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
FSG: 28 — Engines, Turbines, and Components

General Description

The Rotor,engine Poppet Valve, cataloged under National Stock Number 2805-01-066-5405, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2805-01-066-5405
Item Name	Rotor,engine Poppet Valve
FSC / FSG	2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components
Status	ACTIVE
First Step Diameter	0.968 INCHES NOMINAL IN
Second Step Length	0.290 INCHES NOMINAL IN
Style Designator	POSITIVE TYPE-STRAIGHT BORE
Rotation Direction	CLOCKWISE AND COUNTERCLOCKWISE
Distance From End to Nearest Step	0.062 INCHES NOMINAL IN
Second Step Diameter	1.682 INCHES NOMINAL IN
First Step Length	0.062 INCHES NOMINAL IN
Spring and Ball Retainer Inside Diameter	0.887 INCHES NOMINAL IN
Bore Diameter	0.627 INCHES NOMINAL IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
B67862	3/9 Design control — primary reference U.S. Government activity

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.

2805-00-000-4022

2805-00-000-4022 · Item name not on file

2805-00-001-0029

2805-00-001-0029 · Item name not on file

2805-00-001-3527

2805-00-001-3527 · Item name not on file

2805-00-001-3844

2805-00-001-3844 · Item name not on file

2805-00-001-3854

COVER,FLYWHEEL

2805-00-001-6154

2805-00-001-6154 · Item name not on file

2805-00-001-6164

FLYWHEEL,ENGINE

2805-00-001-6575

RING SET,PISTON

Frequently Asked Questions

What is NSN 2805-01-066-5405?

NSN 2805-01-066-5405 is a Rotor,engine Poppet Valve, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.

What are the specifications of 2805-01-066-5405?

Key specifications for 2805-01-066-5405: Overall Height: 0.410 INCHES NOMINAL IN; First Step Diameter: 0.968 INCHES NOMINAL IN; Second Step Length: 0.290 INCHES NOMINAL IN; Style Designator: POSITIVE TYPE-STRAIGHT BORE. 9 specifications are documented in the U.S. Government catalog.

Is NSN 2805-01-066-5405 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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