Model: 1289952-1

Spur Antibacklash Gear

Properties:

Attachment Method
Clamp
Pitch Diameter
0.6250 inches
Teeth Quantity
50
Bore Style
Plain both ends
Outside Diameter
0.6500 inches
Nominallength
0.265 inches
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.135 inches first end
Distance Between Body Face And Protruding Hub End
0.063 inches second end
Face Width
0.067 inches
Bore Diameter
0.125 inches both ends
Hub Style Designator
Plain second end
Hub Style Designator
Split first end
Hub Diameter
0.187 inches second end
Hub Diameter
0.408 inches first end
Material
Copper alloy 353 body
Material
Stainless steel
Material Specification
Qq-b-613, hard federal specification single material response body
Style Designator
Protruding hubs
Furnished Items And Quantity
1 spring
NSN
3020-00-670-5995
Part Number
1289952-1
Description
Gear,antibacklash,spur
CAGE
55972

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 1289952-1 NSN 3020-00-670-5995

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:
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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