Model: 14521

Valve Seat

Properties:

Flange Diameter

Between 0.371 inches and 0.373 inches

Body Outside Diameter

Between 0.262 inches and 0.264 inches

Flange Seat To Disk End Height

Between 0.200 inches and 0.202 inches

Under Flange Height

Between 0.138 inches and 0.143 inches

Hardness Rating

25.0 rockwell c and 32.0 rockwell c

Seating Surface Shape

Flat

Body Stepped Inside Diameter

0.094 inches second step and 0.095 inches second step

Body Stepped Inside Diameter

0.125 inches first step

Material

Steel

Material Specification

Qq-s-763 cl 416 federal specification single material response

Style Designator

Plain flanged

NSN

4820-00-075-2255

Part Number

14521

Description

Seat,valve

CAGE

99643

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 14521 NSN 4820-00-075-2255

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