Model: 81223S41-977PC24

Helical Gear

Properties:

Body Style
Webbed, with lightening holes
Pitch Diameter
7.2960 inches
Teeth Quantity
45
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
27.0 rockwell c and 32.0 rockwell c
Outside Diameter
7.5177 inches
Teeth Type
Single helix
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
23.2200 degrees
Distance Between Body Face And Protruding Hub End
0.375 inches first end
Distance Between Body Face And Recessed Hub End
0.125 inches second end
Face Width
1.375 inches
Bore Diameter
1.3250 inches first end
Keyway Width
0.500 inches both ends
Hub Style Designator
1 step first end
End Length
0.125 inches first end
First Step Length
0.250 inches first end
First Step Diameter
2.375 inches first end
Material
Steel
Material Specification
Mil-s-890, alloy no. 2 military specification single material response
Style Designator
One protruding hub, one recessed hub
NSN
3020-00-289-7963
Part Number
81223S41-977PC24
Description
Gear,helical
CAGE
80064

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 81223S41-977PC24 NSN 3020-00-289-7963

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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