Model: ND523

Valve Seat

Properties:

Thread Class

2a single threaded portion

Thread Length

0.656 inches single threaded portion

Overall Height

0.656 inches

Body Inside Diameter

0.500 inches

Seal Accommodation Type

Recessed

Thready Qty Per Inch (tpi)

28 single threaded portion

Thread Size

0.750 inches single threaded portion

Seating Surface Shape

Flat

Material

Copper

Material Specification

Astm b62 alloy 836 assn standard single material response seat

Style Designator

B5 plain threaded

Style Designator

Plain threaded

Thread Series Designator

Un single threaded portion

NSN

4820-00-036-0021

Part Number

ND523

Description

Seat,valve

CAGE

14959

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 ND523 NSN 4820-00-036-0021

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