Model: 20580-1

Helical Gear

Properties:

Body Style
Webbed, with lightening holes
Pitch Diameter
1.5000 inches
Teeth Quantity
45
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
32.0 rockwell c hub and 38.0 rockwell c hub
Hardness Rating
32.0 rockwell c teeth and 48.0 rockwell c teeth
Outside Diameter
1.5660 inches
Nominallength
0.370 inches
Teeth Type
Single helix
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
7.0000 degrees
Distance Between Body Face And Protruding Hub End
0.030 inches both ends
Face Width
0.310 inches
Bore Diameter
0.313 inches both ends
Keyway Width
0.126 inches both ends
Distance From Bore Center To Keyway Bottom
0.206 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
0.560 inches both ends
Material
Steel comp 4620
Material Specification
Mil-s-7493 military specification single material response
Style Designator
Protruding hubs
NSN
3020-00-788-5648
Part Number
20580-1
Description
Gear,helical
CAGE
86831

A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also gear, antibacklash, helical:

Part 20580-1 NSN 3020-00-788-5648

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05464
FIIG:
A27300
Concept No.:
1
App. Key:
AF
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:
JY
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:
E
LVL_B:
Q

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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