Model: H643-6506-31

Valve Seat

Special Features:

Nha valve assembly sn

Properties:

Thread Class

2a first threaded portion

Thread Length

0.500 inches first threaded portion

Overall Height

0.500 inches

Body Inside Diameter

0.089 inches

Thread Size

0.375 inches first threaded portion

Seating Surface Shape

Angular

Material

Nickel alloy seat

Style Designator

Plain threaded

Thread Series Designator

Unf first threaded portion

NSN

4820-01-498-4373

Part Number

H643-6506-31

Description

Seat,valve

CAGE

96169

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 H643-6506-31 NSN 4820-01-498-4373

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