Model: 643B

Groove Pulley

Properties:

Groove Depth
0.438 inches
Groove Width
0.656 inches
Outside Diameter
6.750 inches
V Groove Angle In Deg
34.0
Pitch Diameter
5.060 inches
Material And Location
Iron, cast or iron, ductile
Face Width
2.500 inches
Design Form
Plain
Bore Type
Straight
Bearings
Not included
Groove Quantity
3
Lightening Hole
Not included
Integral Cooling Vane
Not included
Groove Shape
V
Bore Feature
Included
Distance From Outside Flange/rim To Hub End And Location
1.812 inches end any acceptable
Style Designator
Webbed or spoked
NSN
3020-01-477-1081
Part Number
643B
Description
Pulley,groove
CAGE
79425

A pulley with one or more grooved faces or rims of the same diameter. For pulleys encased in a shell or frame, see block, tackle. for items specifically designed for aviation, see pulley(1), groove, aviation.

Part 643B NSN 3020-01-477-1081

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
08109
FIIG:
T353-A
Concept No.:
1
App. Key:
AA
Cond. Code:
1
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:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8487900080
  • SITC: 74999
  • End Use: Industrial machines, other
  • NAICS: 333999
  • USDA: 1

Freight Class: Machinery parts not containing electrical features, and not specified or included elsewhere in chapter 84, except ships' propellers

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