Model: A3291-2

Worm Gear

Properties:

Pitch Diameter
0.5000 inches
Bore Style
Plain both ends
Outside Diameter
0.531 inches
Thread Form Quantity
4
Thread Form Direction
Right-hand
Pressure Angle
20.0000 degrees
Helix Angle
7.0000 degrees
Distance Between Body Face And Protruding Hub End
0.224 inches first end
Face Width
0.750 inches
Bore Diameter
0.250 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
0.432 inches first end
Material
Stainless steel
Surface Treatment
Passivate
Style Designator
Protruding hub
NSN
3020-00-877-0290
Part Number
A3291-2
Description
Gear,worm
CAGE
03538

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

Part A3291-2 NSN 3020-00-877-0290

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:
--
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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