Model: 42423-1

Helical Gear

Special Features:

Two puller holes 1/2-20 unf 2b thd in body of gear

Properties:

Body Style
Webbed, offset, solid
Pitch Diameter
4.8750 inches
Teeth Quantity
36
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
5.132 inches
Nominallength
1.396 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
22.6198 degrees
Distance Between Body Face And Protruding Hub End
0.146 inches first end
Face Width
1.250 inches
Bore Diameter
1.378 inches both ends
Keyway Width
0.312 inches both ends
Distance From Bore Center To Keyway Bottom
0.831 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 4340h
Material Specification
66 federal standard single material response and aisi/sae 4340h assn standard single material response
Style Designator
One protruding hub, one flush hub
NSN
3020-00-507-3251
Part Number
42423-1
Description
Gear,helical
CAGE
15434

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 42423-1 NSN 3020-00-507-3251

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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197339
UFC:
96710
LTL:
65.0
LCL:
60.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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