Model: 3237747

Helical Gear

Special Features:

Figure o stamped on side of gear face on center line of tooth space on upper vertical ctr line

Properties:

Body Style
Webbed, offset, solid
Attachment Method
Mounting hole
Pitch Diameter
8.6250 inches
Teeth Quantity
69
Bore Style
W/counterbore counterbore, first end
Mounting Hole Thread Series Designator
Unf axially through hub, first end
Hardness Rating
10.0 rockwell c and 13.0 rockwell c
Mounting Hole Thread Size
0.375 inches axially through hub, first end
Mounting Hole Type And Quantity
4 plain axially through hub, first end and 4 threaded axially through hub, first end
Outside Diameter
8.874 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
25.8167 degrees
Distance Between Body Face And Protruding Hub End
0.188 inches first end
Body Recess Depth
1.000 inches second end
Face Width
1.250 inches
Bore Diameter
4.375 inches counterbore, first end
Counterbore Depth
0.188 inches counterbore, first end
Counterbore Diameter
6.252 inches counterbore, first end
Hub Style Designator
Plain first end
Hub Diameter
6.750 inches first end
Mounting Hole Diameter
0.500 inches axially through hub, first end
Material
Steel
Material Specification
Mil-s-890, class b military specification single material response
Style Designator
Protruding hub, recessed body
NSN
3020-00-391-0923
Part Number
3237747
Description
Gear,helical
CAGE
55380

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 3237747 NSN 3020-00-391-0923

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:
10.0000lbs
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:
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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