Model: 28189

Valve Seat

Properties:

Flange Diameter

Between 0.493 inches and 0.497 inches

Body Outside Diameter

Between 0.401 inches and 0.411 inches

Body Inside Diameter

Between 0.312 inches and 0.313 inches

Flange Seat To Disk End Height

Between 0.184 inches and 0.188 inches

Under Flange Height

Between 0.082 inches and 0.096 inches

Seal Accommodation Type

Recessed

Seating Surface Shape

Angular

Material

Steel comp 302 body

Surface Treatment

Passivate

Style Designator

Plain flanged

Fsc Application Data

Aircraft constant speed alternator drive hydraulic oil filter

NSN

4810-00-342-0483

Part Number

28189

Description

Seat,valve

CAGE

99167

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 28189 NSN 4810-00-342-0483

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:

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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