Model: 12131-42

Valve Seat

Properties:

Thread Class

3a single threaded portion

Flange Diameter

3.125 inches

Body Inside Diameter

2.515 inches

Seat Radius

0.125 inches

Flange Seat To Disk End Height

0.375 inches

Under Flange Height

0.562 inches

Thready Qty Per Inch (tpi)

14 single threaded portion

Thread Size

2.937 inches single threaded portion

Seating Surface Shape

Radial

Material

Nickel alloy

Style Designator

Threaded flanged

Thread Series Designator

Uns single threaded portion

NSN

4820-01-039-5995

Part Number

12131-42

Description

Seat,valve

CAGE

35795

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 12131-42 NSN 4820-01-039-5995

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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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