Model: P8426A

Valve Seat

Properties:

Thread Class

3a single threaded portion

Thread Length

0.625 inches single threaded portion

Flange Diameter

4.250 inches

Body Outside Diameter

1.688 inches

Body Inside Diameter

0.880 inches

Seat Radius

0.062 inches

Flange Seat To Disk End Height

0.625 inches

Under Flange Height

1.125 inches

Thread Size

4.250 inches single threaded portion

Seating Surface Shape

Radial

Material

Stainless steel

Thread Series Designator

Unf single threaded portion

NSN

4820-01-217-9972

Part Number

P8426A

Description

Seat,valve

CAGE

70667

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 P8426A NSN 4820-01-217-9972

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