Model: 8447497

Internal Gear

Properties:

Body Style
Plain, solid
Spline Quantity
39 both ends
Attachment Method
Mounting hole
Pitch Diameter
5.4545 inches
Teeth Quantity
90
Bore Style
Involute spline both ends
Spline Pitch Diameter
1.6250 inches both ends
Backlash Designation
Grade a
Mounting Hole Thread Series Designator
Unf axially through flange
Hardness Rating
35.0 rockwell c and 38.0 rockwell c
Mounting Hole Thread Size
0.458 inches axially through flange
Mounting Hole Type And Quantity
2 threaded axially through flange
Outside Diameter
6.090 inches
Width Across Flats
4.250 inches
Nominallength
2.530 inches
Teeth Type
Spur
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.645 inches first end
Face Width
1.580 inches
Bore Diameter
1.714 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
2.140 inches first end
Precision Classification
Quality number 8
Material
Steel comp 4140 or steel comp 8640
Material Specification
Astm a332 assn standard 1st material response or astm a331 assn standard 2nd material response
Surface Treatment
Phosphate zinc
Surface Treatment Specification
Mil-std-171 fn5.3.2.2 military standard single treatment response
Style Designator
Solid back ring, protruding hub, recessed hub
NSN
3020-01-045-9204
Part Number
8447497
Description
Gear,internal
CAGE
19204

A gear with teeth formed on the inner surface of a cylinder or cone.

Part 8447497 NSN 3020-01-045-9204

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05465
FIIG:
A27300
Concept No.:
1
App. Key:
AG
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197339
UFC:
96710
LTL:
65.0
LCL:
60.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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