Model: A31425

Valve Seat

Properties:

Thread Class

3a single threaded portion

Thready Qty Per Inch (tpi)

12 single threaded portion

Thread Size

1.062 inches single threaded portion

Seating Surface Shape

Flat

Material

Steel comp 440c seat

Surface Treatment

Passivate seat

Thread Series Designator

Unj single threaded portion

Specification Data

91816-a31425 professional/industrial association specification

NSN

4820-01-380-6145

Part Number

A31425

Description

Seat,valve

CAGE

91816

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 A31425 NSN 4820-01-380-6145

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