Model: 3220873

Helical Gear

Properties:

Body Style
Webbed, solid
Spline Quantity
6 both ends
Pitch Diameter
7.0000 inches
Teeth Quantity
56
Bore Style
Straight spline both ends
Hardness Rating
89.0 rockwell b and 94.0 rockwell b
Outside Diameter
7.2500 inches
Nominallength
3.375 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
25.8167 degrees
Distance Between Body Face And Protruding Hub End
0.812 inches both ends
Face Width
1.750 inches
Bore Diameter
1.275 inches both ends
Counterbore Diameter
0.281 inches both ends
Hub Style Designator
1 step both ends
Material
Steel
Material Specification
Mil-s-890, class b military specification single material response
Style Designator
Protruding hubs
NSN
3020-00-378-1644
Part Number
3220873
Description
Gear,helical
CAGE
55380

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 3220873 NSN 3020-00-378-1644

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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