Model: 20A12225

Valve Seat

Special Features:

0.922 in. Min, 0.940 in. Max w across hexagonal flats

Properties:

Thread Class

3a single threaded portion

Thread Length

0.166 inches single threaded portion and 0.174 inches single threaded portion

Flange Diameter

Between 0.922 inches and 0.940 inches

Body Inside Diameter

0.400 inches

Flange Seat To Disk End Height

0.230 mils and 0.290 centimeters

Under Flange Height

0.390 inches

Seat Angle In Deg

15.000

Thread Size

0.562 inches single threaded portion

Seating Surface Shape

Angular

Material

Steel

Style Designator

Threaded flanged

Thread Series Designator

Unf single threaded portion

NSN

4820-00-340-7122

Part Number

20A12225

Description

Seat,valve

CAGE

11599

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 20A12225 NSN 4820-00-340-7122

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:

60.0

WCC:

594

TCC:

SHC:

ACC:

Equipment for Aircraft

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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