Model: 291-745B

Helical Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
3.0938 inches
Teeth Quantity
24
Outside Diameter
3.3550 inches
Nominallength
0.754 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
15.0000 degrees
Face Width
0.508 inches
Bore Diameter
0.8750 inches both ends
Material
Steel
Style Designator
Protruding hub
NSN
3020-00-812-7102
Part Number
291-745B
Description
Gear,helical
CAGE
93742

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 291-745B NSN 3020-00-812-7102

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

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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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