Model: 318273

Helical Gear

Properties:

Pitch Diameter
6.5520 inches
Teeth Quantity
65
Bore Style
Tapered w/keyway first end
Hardness Rating
285.0 brinell standard and 325.0 brinell standard
Outside Diameter
6.724 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Helix Angle
30.0483 degrees
Distance Between Body Face And Protruding Hub End
0.375 inches first end
Distance Between Body Face And Recessed Hub End
0.500 inches second end
Face Width
1.750 inches
Keyway Width
0.376 inches both ends
Distance From Bore Center To Keyway Bottom
1.639 inches both ends
Taper Major Diameter
1.868 inches first end
Hub Style Designator
Plain second end
Hub Diameter
2.500 inches second end
Material
Steel
Material Specification
Mil-s-890, alloy no. 4 military specification single material response
Style Designator
One protruding hub, one recessed hub
NSN
3020-00-678-6386
Part Number
318273
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 318273 NSN 3020-00-678-6386

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:
--
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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