Model: 51280

Helical Gear

Properties:

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
2.6040 inches
Teeth Quantity
123
Bore Style
Plain both ends
Mounting Hole Thread Series Designator
Unc transversely through hub, first end
Mounting Hole Thready Qty Per Inch (tpi)
40 transversely through hub, first end
Mounting Hole Thread Size
0.1120 inches transversely through hub, first end
Mounting Hole Type And Quantity
1 threaded transversely through hub, first end
Outside Diameter
2.6460 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
3.5498 degrees
Distance Between Body Face And Protruding Hub End
0.281 inches first end
Face Width
0.188 inches
Bore Diameter
2.1869 inches both ends
Hub Style Designator
1 step first end
End Length
0.0310 inches first end
End Diameter
0.3750 inches first end
First Step Length
0.2500 inches first end
First Step Diameter
0.5000 inches first end
Material
Copper alloy
Material Specification
Naval, mil-b-994 military specification single material response
Style Designator
Protruding hub
NSN
3020-00-517-3222
Part Number
51280
Description
Gear,helical
CAGE
01843

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 51280 NSN 3020-00-517-3222

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.4000lbs
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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