Model: 12444

Worm Gear

Properties:

Pitch Diameter
Between 0.3323 inches and 0.3333 inches
Face Type
Straight
Bore Style
W/counterbore both ends
Outside Diameter
0.374 inches
Thread Form Quantity
4
Thread Form Direction
Right-hand
Pressure Angle
20.0000 degrees
Helix Angle
14.0333 degrees
Distance Between Body Face And Protruding Hub End
0.188 inches first end
Face Width
0.492 inches
Bore Diameter
0.125 inches both ends
Counterbore Depth
0.045 inches counterbore, first end
Counterbore Depth
0.230 inches counter bore, second end
Counterbore Diameter
0.150 inches counter bore, second end
Counterbore Diameter
0.254 inches counterbore, first end
Hub Style Designator
Pinned first end
Hub Diameter
0.312 inches first end
Material
Steel comp 303se
Material Specification
Qq-s-764, cond a federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-f-14072, finish e300 military specification single treatment response
Style Designator
Protruding hub
NSN
3020-00-410-7477
Part Number
12444
Description
Gear,worm
CAGE
01351

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

Part 12444 NSN 3020-00-410-7477

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:
SX
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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