Model: 618-4293-001

Spur Antibacklash Gear

Properties:

Attachment Method
Mounting hole
Pitch Diameter
0.4966 inches
Teeth Quantity
50
Bore Style
Plain both ends
Features Provided
Alignment hole
Outside Diameter
0.5416 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Precision Classification
Quality number 10
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 1 military specification single treatment response
Style Designator
Hubless
NSN
3020-01-035-4419
Part Number
618-4293-001
Description
Gear,antibacklash,spur
CAGE
13499

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 618-4293-001 NSN 3020-01-035-4419

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

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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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