Model: 520770

Spur Gear

Special Features:

Counterbore location 2d end, conterbore dia. 1.15 in. Nom., conterbore depth 0.135 in. Nom.; chamfer on hub 0.125 in.By 45 deg. 2d end

Properties:

Body Style
Plain, solid
Spline Quantity
6 both ends
Pitch Diameter
4.3000 inches
Teeth Quantity
43
Bore Style
Straight spline both ends
Hardness Rating
23.0 rockwell c and 32.0 rockwell c
Hardness Rating
23.0 rockwell c and 32.0 rockwell c
Outside Diameter
4.500 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.375 inches second end
Distance Between Body Face And Protruding Hub End
0.4062 inches first end
Face Width
0.500 inches
Bore Diameter
1.124 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
1.750 inches both ends
Material
Steel
Material Specification
Qq-s-624 federal specification single material response
Surface Treatment
Oxide
Style Designator
Protruding hubs
NSN
3020-00-517-2253
Part Number
520770
Description
Gear,spur
CAGE
10001

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

Part 520770 NSN 3020-00-517-2253

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05466
FIIG:
A27300
Concept No.:
1
App. Key:
AH
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:
121870
UFC:
64910
LTL:
77.5
LCL:
--
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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