Model: 2684

Helical Gear

Properties:

Body Style
Webbed, offset, solid
Pitch Diameter
4.0400 inches
Teeth Quantity
28
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
58.0 rockwell c and 63.0 rockwell c
Outside Diameter
4.260 inches
Nominallength
1.702 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
18.4894 degrees
Helix Angle
23.2158 degrees
Distance Between Body Face And Protruding Hub End
0.327 inches first end
Face Width
1.313 inches
Bore Diameter
1.750 inches both ends
Keyway Width
0.314 inches both ends
Distance From Bore Center To Keyway Bottom
1.028 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
2.375 inches first end
Hub Diameter
2.375 inches second end
Material
Steel
Style Designator
Protruding hubs
NSN
3020-00-385-4756
Part Number
2684
Description
Gear,helical
CAGE
89749

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 2684 NSN 3020-00-385-4756

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:
60.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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