Model: SM-C-413924

Spur Antibacklash Gear

Properties:

Pitch Diameter
1.3750 inches
Teeth Quantity
66
Outside Diameter
1.417 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.148 inches second end
Distance Between Body Face And Protruding Hub End
0.496 inches first end
Face Width
0.088 inches
Hub Style Designator
2 steps first end
Hub Style Designator
Plain second end
Hub Diameter
0.187 inches second end
End Length
0.259 inches first end
End Diameter
0.187 inches first end
First Step Length
0.075 inches first end
First Step Diameter
0.218 inches first end
Second Step Length
0.050 inches first end
Second Step Diameter
0.225 inches first end
Material
Steel comp 303
Material Specification
Qq-s-763, cond a federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-f-14072, finish e300 military specification single treatment response
Style Designator
Protruding hubs
NSN
3020-00-891-1852
Part Number
SM-C-413924
Description
Gear,antibacklash,spur
CAGE
80063

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 SM-C-413924 NSN 3020-00-891-1852

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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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