Model: 458-308

Worm Gear

Properties:

Attachment Method
Mounting hole
Pitch Diameter
Between 0.3320 inches and 0.3330 inches
Face Type
Straight
Bore Style
Plain both ends
Mounting Hole Thread Series Designator
Unc transversely through hub, first end
Mounting Hole Thread Size
0.112 inches transversely through hub, first end
Mounting Hole Type And Quantity
1 plain transversely through hub, first end and 1 threaded transversely through hub, first end
Outside Diameter
0.3746 inches
Thread Form Quantity
4
Thread Form Direction
Right-hand
Pressure Angle
25.0000 degrees
Helix Angle
45.9664 degrees
Distance Between Body Face And Protruding Hub End
0.1875 inches first end
Face Width
0.562 inches
Bore Diameter
0.1878 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
0.260 inches first end
Mounting Hole Diameter
0.052 inches transversely through hub, first end
Material
Steel
Material Specification
Qq-s-763 federal specification single material response
Surface Treatment
Passivate
Style Designator
Protruding hub
NSN
3020-00-289-7491
Part Number
458-308
Description
Gear,worm
CAGE
26916

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

Part 458-308 NSN 3020-00-289-7491

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:
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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