Model: 912C237-2

Helical Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
4.2920 inches
Teeth Quantity
68
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
4.4030 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
28.3332 degrees
Distance Between Body Face And Protruding Hub End
0.563 inches first end
Face Width
0.812 inches
Bore Diameter
0.813 inches both ends
Keyway Width
0.246 inches both ends
Distance From Bore Center To Keyway Bottom
0.540 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
2.000 inches first end
Material
Steel
Material Specification
Mil-s-890, class bs military specification single material response
Style Designator
Protruding hub
NSN
3020-00-080-8289
Part Number
912C237-2
Description
Gear,helical
CAGE
90099

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 912C237-2 NSN 3020-00-080-8289

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:
--
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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