Model: 318288

Helical Gear

Special Features:

2nd end counterbored, 2.188 in. Diameter by 0.375 in. Dp

Properties:

Body Style
Plain, solid
Pitch Diameter
3.4910 inches
Teeth Quantity
35
Bore Style
Tapered w/keyway first end
Hardness Rating
335.0 brinell standard and 375.0 brinell standard
Outside Diameter
3.663 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
30.7995 degrees
Helix Angle
30.0483 degrees
Distance Between Body Face And Protruding Hub End
0.281 inches first end
Face Width
1.250 inches
Keyway Width
0.314 inches first end
Distance From Bore Center To Keyway Bottom
0.873 inches first end
Taper Major Diameter
1.370 inches first end
Hub Style Designator
Plain first end
Hub Diameter
2.250 inches first end
Material
Steel
Material Specification
Mil-s-890, alloy no. 1 military specification single material response
Style Designator
Protruding hub
NSN
3020-00-671-4550
Part Number
318288
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 318288 NSN 3020-00-671-4550

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:
3.0000lbs
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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