Model: 4637

Helical Gear

Properties:

Body Style
Webbed, solid
Pitch Diameter
6.0658 inches
Teeth Quantity
43
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
6.3480 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
23.4167 degrees
Distance Between Body Face And Protruding Hub End
0.1953 inches first end
Distance Between Body Face And Recessed Hub End
0.1373 inches second end
Face Width
1.127 inches
Bore Diameter
1.750 inches both ends
Keyway Width
0.254 inches both ends
Distance From Bore Center To Keyway Bottom
1.075 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
2.125 inches first end
Hub Diameter
2.125 inches second end
Material
Steel comp 8620h
Material Specification
Qq-s-624 federal specification single material response
Style Designator
One protruding hub, one recessed hub
NSN
3020-00-268-4199
Part Number
4637
Description
Gear,helical
CAGE
1DF03

A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also gear, antibacklash, helical:

Part 4637 NSN 3020-00-268-4199

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05464
FIIG:
A27300
Concept No.:
1
App. Key:
AF
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:
U
ESD:
ESD:
MMAC:
SX
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197339
UFC:
96710
LTL:
65.0
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483409000
  • SITC: 74840
  • End Use: Industrial machines, other
  • NAICS: 333612
  • USDA: 1

Freight Class: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

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