Model: 155021A

Valve Seat

Properties:

Flange Diameter
Between 1.680 inches and 1.681 inches
Body Outside Diameter
Between 1.533 inches and 1.534 inches
Body Inside Diameter
Between 1.370 inches and 1.380 inches
Flange Seat To Disk End Height
0.135 mils and 0.140 centimeters
Under Flange Height
Between 0.400 inches and 0.410 inches
Seat Angle In Deg
45.000
Seating Surface Shape
Angular
Material
Cobalt alloy face
Material
Steel body
Material Specification
66 aisi/sae 4140 federal standard 1st material response body
Style Designator
Plain flanged
NSN
4820-00-354-1667
Part Number
155021A
Description
Seat,valve
CAGE
1ML14

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 155021A NSN 4820-00-354-1667

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:
U
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:
736
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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