Model: A993

Worm Gear

Properties:

Pitch Diameter
Between 1.6993 inches and 1.7033 inches
Bore Style
Plain both ends
Outside Diameter
1.770 inches
Nominallength
0.984 inches
Thread Form Quantity
4
Thread Form Direction
Left-hand
Pressure Angle
20.0000 degrees
Helix Angle
82.9833 degrees
Distance Between Body Face And Protruding Hub End
0.360 inches first end
Face Width
0.562 inches
Bore Diameter
1.181 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
1.562 inches first end
Material
Steel
Style Designator
Protruding hub
NSN
3020-00-737-3166
Part Number
A993
Description
Gear,worm
CAGE
34623

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

Part A993 NSN 3020-00-737-3166

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:
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:
9
ACC:
Construction Materials

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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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