Model: 311-347

Spur Gear

Special Features:

Counterbore on second end 0.625 in. Diameter 0.125 in. Deep

Properties:

Body Style
Plain, with lightening holes
Attachment Method
Press fit
Pitch Diameter
4.5833 inches
Teeth Quantity
220
Bore Style
Tapered w/keyway second end
Outside Diameter
4.6250 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.4062 inches first end
Distance Between Body Face And Protruding Hub End
0.0225 inches second end
Face Width
0.1225 inches
Keyway Width
0.0937 inches both ends
Distance From Bore Center To Keyway Bottom
0.0500 inches second end
Taper Major Diameter
0.3505 inches second end
Hub Style Designator
1 step first end
Hub Style Designator
Plain second end
Hub Diameter
0.8750 inches second end
End Length
0.3437 inches first end
Precision Classification
Quality number 9
End Diameter
0.5652 inches first end
First Step Length
0.0625 inches first end
First Step Diameter
1.1250 inches first end
Material
Copper alloy teeth
Material
Copper alloy body
Material
Steel comp 304 hub
Material Specification
Fed standard 66, aisi 304/sae 30304 federal standard single material response hub
Material Specification
Mil-b-944, comp a military specification single material response body
Material Specification
Mil-b-944, comp a military specification single material response teeth
Surface Treatment
Passivate hub
Style Designator
Protruding hubs
NSN
3020-00-706-9355
Part Number
311-347
Description
Gear,spur
CAGE
92755

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

Part 311-347 NSN 3020-00-706-9355

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05466
FIIG:
A27300
Concept No.:
1
App. Key:
AH
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:
197337
UFC:
96690
LTL:
RATING VARIABLE
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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