Model: 8543-009-440

Valve Seat

Properties:

Flange Diameter
4.895 inches
Body Outside Diameter
4.500 inches
Body Inside Diameter
4.000 inches
End Application
Swing check valve
Flange Seat To Disk End Height
0.937 inches
Under Flange Height
0.156 inches
Seating Surface Shape
O-ring
Material
Steel
Style Designator
Plain flanged
Reference Number Differentiating Characteristics
Magnetic permeability shall not exceed 2.0 after fabrication
NSN
4820-01-342-1731
Part Number
8543-009-440
Description
Seat,valve
CAGE
57574

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 8543-009-440 NSN 4820-01-342-1731

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:
60.0
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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