Model: 3248987

Helical Gear

Properties:

Body Style
Webbed, with lightening holes
Attachment Method
Mounting hole
Pitch Diameter
16.4000 inches
Teeth Quantity
82
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Mounting Hole Thread Series Designator
Unc transversely through hub, first end
Mounting Hole Thready Qty Per Inch (tpi)
13 transversely through hub, first end
Hardness Rating
10.0 rockwell c and 20.0 rockwell c
Mounting Hole Thread Size
0.500 inches transversely through hub, first end
Mounting Hole Type And Quantity
1 threaded transversely through hub, first end
Outside Diameter
16.682 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
14.9167 degrees
Distance Between Body Face And Recessed Hub End
0.250 inches both ends
Face Width
3.000 inches
Bore Diameter
2.999 inches both ends
Keyway Width
0.377 inches both ends
Distance From Bore Center To Keyway Bottom
1.695 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
4.500 inches first end
Hub Diameter
4.500 inches second end
Material
Steel
Material Specification
Mil-s-890, class b military specification single material response
Style Designator
Recessed hubs
NSN
3020-00-245-8308
Part Number
3248987
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 3248987 NSN 3020-00-245-8308

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:
81.0000lbs
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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