Model: 297-436

Valve Seat

Properties:

Flange Diameter

Between 2.740 inches and 2.745 inches

Taper Length

1.250 inches

Taper Minor Diameter

Between 1.371 inches and 1.376 inches

Taper Major Diameter

Between 1.907 inches and 1.938 inches

Body Inside Diameter

Between 1.371 inches and 1.376 inches

Flange Seat To Disk End Height

0.312 inches

Under Flange Height

0.812 inches

Seat Angle In Deg

45.000

Seating Surface Shape

Angular

Material

Rod, welding, surfacing face

Material

Steel body

Material Specification

Mil-r-17131, type mil-rcocr-a military specification single material response face

Material Specification

Qq-s-763 federal specification single material response body

Style Designator

Threaded flanged

NSN

4820-00-671-4540

Part Number

297-436

Description

Seat,valve

CAGE

27235

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 297-436 NSN 4820-00-671-4540

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