Model: D84231 PIECE 4

Valve Seat

Properties:

Thread Class

2a single threaded portion

Overall Height

2.125 inches

Body Inside Diameter

17.000 inches

Thready Qty Per Inch (tpi)

12 single threaded portion

Thread Size

19.000 inches single threaded portion

Seating Surface Shape

Flat

Material

Nickel alloy

Material Specification

Qq-n-288/com+4 federal specification single material response

Style Designator

B5 plain threaded

Thread Series Designator

Uns single threaded portion

NSN

4820-01-269-9558

Part Number

D84231 PIECE 4

Description

Seat,valve

CAGE

04972

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 D84231 PIECE 4 NSN 4820-01-269-9558

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:

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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