Model: 7971915

Helical Gear

Properties:

Body Style
Webbed, solid
Pitch Diameter
7.7647 inches
Teeth Quantity
33
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
7.9875 inches
Teeth Type
Single helix
Tooth Form
Stub
Tooth Direction
Left
Pressure Angle
25.0000 degrees
Helix Angle
20.1555 degrees
Distance Between Body Face And Protruding Hub End
0.191 inches first end
Face Width
2.438 inches
Bore Diameter
2.4995 inches first end
Keyway Width
0.497 inches first end
Distance From Bore Center To Keyway Bottom
1.427 inches first end
Hub Style Designator
Plain both ends
Hub Diameter
3.410 inches first end
Material
Steel
Material Specification
Mil-s-13048 military specification single material response
Style Designator
One protruding hub, one flush hub
NSN
3020-00-333-3530
Part Number
7971915
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 7971915 NSN 3020-00-333-3530

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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