Model: 12446

Worm Gear

Properties:

Attachment Method
Mounting hole
Pitch Diameter
0.3330 inches
Face Type
Straight
Bore Style
Plain both ends
Mounting Hole Type And Quantity
2 plain transversely through hub, first end
Outside Diameter
0.360 inches
Nominallength
0.410 inches
Thread Form Quantity
2
Thread Form Direction
Right-hand
Pressure Angle
20.0000 degrees
Helix Angle
4.0000 degrees
Distance Between Body Face And Protruding Hub End
0.215 inches first end
Face Width
0.195 inches
Bore Diameter
0.125 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
0.312 inches first end
Mounting Hole Diameter
0.052 inches transversely through hub, first end
Material
Steel comp 303
Material Specification
Mil-s-7720, comp 303s military specification single material response
Surface Treatment
Passivate
Style Designator
Protruding hub
NSN
3020-00-958-1081
Part Number
12446
Description
Gear,worm
CAGE
01351

A gear with teeth on its outer surface in the form of helical threads.

Part 12446 NSN 3020-00-958-1081

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05467
FIIG:
A27300
Concept No.:
1
App. Key:
AJ
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:
AY
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197339
UFC:
96710
LTL:
65.0
LCL:
60.0
WCC:
593
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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