Model: 428B947-11

Valve Seat

Properties:

Flange Diameter

Between 4.187 inches and 4.188 inches

Body Outside Diameter

3.120 inches

Body Inside Diameter

Between 1.938 inches and 1.948 inches

Seat Radius

Between 0.667 inches and 0.677 inches

Flange Seat To Disk End Height

1.625 mils and 1.627 centimeters

Under Flange Height

1.875 inches

Seating Surface Shape

Radial

Style Designator

Plain flanged

NSN

4820-00-860-0714

Part Number

428B947-11

Description

Seat,valve

CAGE

01289

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

Part 428B947-11 NSN 4820-00-860-0714

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22113

FIIG:

A15500

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

593

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8481909090
SITC: 74790
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Parts of taps, cocks, valves and similar appliances, nesoi