Model: A1108-3

Valve Seat

Properties:

Thread Class

2a single threaded portion

Flange Diameter

2.031 inches

Body Inside Diameter

1.671 inches

Seat Radius

0.093 inches

Flange Seat To Disk End Height

0.250 inches

Under Flange Height

0.187 inches

Thready Qty Per Inch (tpi)

20 single threaded portion

Thread Size

1.875 inches single threaded portion

Seating Surface Shape

Radial

Material

Copper alloy

Style Designator

Threaded flanged

Thread Series Designator

Un single threaded portion

NSN

4820-00-470-6538

Part Number

A1108-3

Description

Seat,valve

CAGE

95775

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 A1108-3 NSN 4820-00-470-6538

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