Model: P8426A

Valve Seat

Properties:

Thread Class
3a single threaded portion
Thread Length
0.625 inches single threaded portion
Flange Diameter
4.250 inches
Body Outside Diameter
1.688 inches
Body Inside Diameter
0.880 inches
Seat Radius
0.062 inches
Flange Seat To Disk End Height
0.625 inches
Under Flange Height
1.125 inches
Thread Size
4.250 inches single threaded portion
Seating Surface Shape
Radial
Material
Stainless steel
Thread Series Designator
Unf single threaded portion
NSN
4820-01-217-9972
Part Number
P8426A
Description
Seat,valve
CAGE
70667

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 P8426A NSN 4820-01-217-9972

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:
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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