Model: 7974406

Helical Gear

Special Features:

Fig x marking on face of gear tooth 24 degrees 50 min cwc from centerline of groove, one groove 0.250 in. Min, 0.253 in. Max w 1st end on body of gear

Properties:

Body Style
Plain, solid
Pitch Diameter
2.4140 inches
Teeth Quantity
27
Bore Style
W/counterbore counter bore, second end
Outside Diameter
2.578 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
21.4000 degrees
Distance Between Body Face And Protruding Hub End
0.176 inches first end
Face Width
0.375 inches
Bore Diameter
0.625 inches counter bore, second end
Counterbore Depth
0.052 inches counter bore, second end
Counterbore Diameter
1.250 inches counter bore, second end
Hub Style Designator
1 step first end
End Length
0.031 inches first end
End Diameter
1.000 inches first end
First Step Length
0.145 inches first end
First Step Diameter
1.813 inches first end
Material
Steel comp 1213
Material Specification
66 federal standard single material response and aisi c1113 assn standard single material response
Style Designator
Protruding hub
NSN
3020-00-389-6242
Part Number
7974406
Description
Gear,helical
CAGE
19207

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 7974406 NSN 3020-00-389-6242

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

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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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