Model: 179676-000

Spur Antibacklash Gear

Properties:

Attachment Method
Clamp
Pitch Diameter
1.1250 inches
Teeth Quantity
108
Outside Diameter
1.136 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.203 inches first end
Distance Between Body Face And Protruding Hub End
0.033 inches second end
Face Width
0.062 inches
Hub Style Designator
Plain second end
Hub Style Designator
Split first end
Hub Diameter
0.156 inches second end
Hub Diameter
0.186 inches first end
Precision Classification
Quality number 9
Material
Aluminum alloy 2024 body
Material
Steel hub
Material Specification
Mil-s-7720, comp 303s, cond a military specification single material response hub
Material Specification
Qq-a-355, cond t3 federal specification single material response body
Surface Treatment
Passivate hub
Surface Treatment Specification
Mil-f-14072 e300 military specification single treatment response hub
Style Designator
Protruding hubs
NSN
3020-00-278-8191
Part Number
179676-000
Description
Gear,antibacklash,spur
CAGE
81413

An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

Part 179676-000 NSN 3020-00-278-8191

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26668
FIIG:
A27300
Concept No.:
App. Key:
AC
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:
121870
UFC:
64910
LTL:
77.5
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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