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:
A
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
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

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