Model: 231581

Helical Gear

Properties:

Body Style
Webbed, solid
Pitch Diameter
7.2340 inches
Teeth Quantity
45
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
7.5740 inches
Nominallength
1.685 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
30.0000 degrees
Distance Between Body Face And Protruding Hub End
0.245 inches both ends
Distance Between Body Face And Recessed Hub End
0.188 inches second end
Face Width
1.252 inches
Bore Diameter
2.249 inches both ends
Keyway Width
0.378 inches both ends
Distance From Bore Center To Keyway Bottom
1.317 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
2.750 inches first end
Hub Diameter
2.750 inches second end
Material
Steel comp 8620h
Material Specification
66, aisi/sae 8620h federal standard single material response
Style Designator
One protruding hub, one recessed hub
NSN
3020-00-265-7749
Part Number
231581
Description
Gear,helical
CAGE
08683

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 231581 NSN 3020-00-265-7749

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:
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:
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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