Model: 238254

Helical Gear

Special Features:

Counterbore second end, dia. 1.750 in. , depth 0.313 in.

Properties:

Body Style
Plain, solid
Pitch Diameter
2.3010 inches
Teeth Quantity
28
Bore Style
Tapered w/keyway first end
Hardness Rating
335.0 brinell standard and 375.0 brinell standard
Outside Diameter
2.446 inches
Teeth Type
Single helix
Tooth Form
Special
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
28.1636 degrees
Distance Between Body Face And Protruding Hub End
0.250 inches first end
Face Width
1.000 inches
Keyway Width
0.256 inches first end
Distance From Bore Center To Keyway Bottom
0.712 inches first end
Taper Major Diameter
1.173 inches first end
Counterbore Diameter
1.7500 inches second end
Hub Diameter
1.938 inches first end
Material
Steel
Material Specification
Mil-s-890, alloy no. 4 military specification single material response
Style Designator
Protruding hub
NSN
3020-00-969-2984
Part Number
238254
Description
Gear,helical
CAGE
21444

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 238254 NSN 3020-00-969-2984

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:
1.0000lbs
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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