Model: 7974247

Helical Gear

Special Features:

Counterbore on 1st end w/ 2.625 in. Nom dia, 0.0625 in. Nom depth

Properties:

Body Style
Webbed, offset, solid
Pitch Diameter
6.9231 inches
Teeth Quantity
30
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
60.0 rockwell c and 63.0 rockwell c
Outside Diameter
7.211 inches
Teeth Type
Single helix
Tooth Form
Stub
Tooth Direction
Right
Pressure Angle
22.5000 degrees
Helix Angle
20.1194 degrees
Distance Between Body Face And Protruding Hub End
0.938 inches both ends
Distance Between Body Face And Recessed Hub End
0.313 inches second end
Face Width
2.000 inches
Bore Diameter
2.500 inches both ends
Keyway Width
0.497 inches both ends
Distance From Bore Center To Keyway Bottom
1.427 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
3.410 inches both ends
Material
Steel
Material Specification
Mil-s-13048 military specification single material response
Style Designator
One protruding hub, one recessed hub
NSN
3020-00-513-9652
Part Number
7974247
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 7974247 NSN 3020-00-513-9652

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:
A
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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