Model: A1N203

Valve Seat

Properties:

Flange Diameter

Between 0.805 inches and 0.809 inches

Body Outside Diameter

Between 0.805 inches and 0.809 inches

Body Inside Diameter

Between 0.150 inches and 0.166 inches

Flange Seat To Disk End Height

Between 0.031 inches and 0.047 inches

Under Flange Height

Between 0.331 inches and 0.349 inches

Seat Angle In Deg

45.000

Seating Surface Shape

Angular

Style Designator

Plain flanged

NSN

4820-00-986-0531

Part Number

A1N203

Description

Seat,valve

CAGE

31949

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 A1N203 NSN 4820-00-986-0531

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:

594

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