Model: 1273389-1

Spur Antibacklash Gear

Properties:

Attachment Method
Slot
End Application
2320-01-123-1610
Pitch Diameter
1.7500 inches
Teeth Quantity
84
Bore Style
Plain both ends
Outside Diameter
1.790 inches
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.221 inches second end
Face Width
0.104 inches
Bore Diameter
0.187 inches both ends
Hub Style Designator
Split second end
Hub Diameter
0.248 inches second end
Clamping Surface Length
0.221 inches second end
Precision Classification
Accuracy grade 12
Material
Steel comp 303 first gear
Material
Steel comp 303 hub
Material
Steel comp 303 second gear
Material
Steel comp 302 spring
Material Specification
Astm-a313 assn standard single material response spring
Material Specification
Astm-a582 assn standard single material response first gear
Material Specification
Astm-a582 assn standard single material response hub
Material Specification
Astm-a582 assn standard single material response second gear
Surface Treatment
Passivate first gear
Surface Treatment
Passivate hub
Surface Treatment
Passivate second gear
Surface Treatment Specification
Mil-std-171 military standard single treatment response first gear
Surface Treatment Specification
Mil-std-171 military standard single treatment response hub
Surface Treatment Specification
Mil-std-171 military standard single treatment response second gear
Style Designator
Protruding hub
NSN
3020-01-425-9562
Part Number
1273389-1
Description
Gear,antibacklash,spur
CAGE
05606

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 1273389-1 NSN 3020-01-425-9562

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
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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