Model: 640-54PC2

Valve Seat

Special Features:

Four 0.625 in. Diameter mtg holes in flange

Properties:

Flange Diameter

6.500 inches

Body Outside Diameter

5.000 inches

Body Inside Diameter

3.000 inches

Flange Seat To Disk End Height

0.375 inches

Under Flange Height

1.875 inches

Seat Angle In Deg

30.000

Seating Surface Shape

Angular

Material

Copper alloy body

Style Designator

Plain flanged

NSN

4820-00-390-3764

Part Number

640-54PC2

Description

Seat,valve

CAGE

72957

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 640-54PC2 NSN 4820-00-390-3764

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:

050855

UFC:

29290

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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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