Model: FV-21-227

Valve Seat

Properties:

Thread Class

2a single threaded portion

Flange Diameter

0.688 inches

Flange Seat To Disk End Height

Between 0.167 inches and 0.177 inches

Under Flange Height

0.406 inches

Seal Accommodation Type

Grooved

Thread Size

0.625 inches single threaded portion

Seating Surface Shape

Flat

Body Stepped Inside Diameter

0.188 inches first step

Body Stepped Inside Diameter

0.253 inches second step

Material

Steel

Style Designator

Threaded flanged

Thread Series Designator

Unf single threaded portion

NSN

4810-00-633-6945

Part Number

FV-21-227

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 FV-21-227 NSN 4810-00-633-6945

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