Model: 121012A

Helical Gear

Special Features:

Uletter c marked on tooth 40 degrees ccw from centerline @of keyway, letter x marked on face 6-1/2 tooth spaces cw from letter c, three no. 8-32 nc by 1/4 in. Deep holes on 1-13/16 in. Diameter bolt circle equally @spaced on 2nd end of gear

Properties:

Body Style
Plain, solid
Pitch Diameter
2.3290 inches
Teeth Quantity
24
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
2.4825 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
31.0000 degrees
Distance Between Body Face And Protruding Hub End
0.328 inches first end
Face Width
0.625 inches
Bore Diameter
1.3768 inches first end
Keyway Width
0.189 inches both ends
Distance From Bore Center To Keyway Bottom
0.7846 inches first end
Hub Style Designator
Plain first end
Hub Diameter
1.750 inches first end
Material
Steel comp 1140
Material Specification
Fed standard 66 federal standard single material response
Style Designator
Protruding hub
NSN
3020-00-249-9949
Part Number
121012A
Description
Gear,helical
CAGE
64104

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 121012A NSN 3020-00-249-9949

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:
--
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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