Model: 21-230

Valve Seat

Properties:

Thread Class

2a single threaded portion

Flange Diameter

0.700 inches

Body Inside Diameter

0.372 inches

Flange Seat To Disk End Height

0.362 inches

Under Flange Height

0.372 inches

Seat Angle In Deg

55.000

Thread Size

0.625 inches single threaded portion

Seating Surface Shape

Angular

Material

Steel

Style Designator

Threaded flanged

Thread Series Designator

Unf single threaded portion

NSN

4810-01-136-0731

Part Number

21-230

Description

Seat,valve

CAGE

04845

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 21-230 NSN 4810-01-136-0731

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:

576

TCC:

SHC:

ACC:

Construction Materials

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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