Model: 4472A

Engine Poppet Valve Tappet

Properties:

Casehardening Indicator
Not casehardened
Concentric Hole Depth
Between 2.589 inches and 2.599 inches
Concentric Hole Diameter
0.750 inches
Overall Length
Between 3.057 inches and 3.067 inches
Body Outside Diameter
Between 0.997 inches and 0.998 inches
Size Designation
Standard
Material And Location
Iron, cast
Adjustability
Nonadjustable
Operation Method
Mechanical
Metallic Hardness Rating And Location
45.7 rockwell c cam end and 52.1 rockwell c cam end
Cam End Diameter
1.547 inches
Crown Height
0.003 inches
Cam End Height
Between 0.250 inches and 0.253 inches
Cup Spherical Radius
0.297 inches
Cup Depth
0.125 inches
Fsc Application Data
Tappets, engine poppet valve, gasoline receiprocating, except aircraft prime moving and starting engine types
NSN
2805-00-422-5918
Part Number
4472A
Description
Tappet,engine Poppet Valve
CAGE
10988

A cylindrically shaped metal item designed to transmit intermittent motion from the cam lobe on a shaft or cam ring, to the engine poppet valve. It may be mechanically or hydraulically operating, and may include adjusting devices.

Part 4472A NSN 2805-00-422-5918

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22199
FIIG:
T267-F
Concept No.:
App. Key:
FA
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

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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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