Model: 309

Electrical Conduit Locknut

Properties:

Thread Size
3-1/2-8
Overall Thickness
0.313 inches
Drive Type
Keyway
Width Across Flats
4.500 inches
Conduit Size Accommodated
3.500 inches
Thread Type
Straight
Material
Iron
Surface Treatment
Zinc
Surface Treatment
Zinc plated
NSN
5975-00-518-3157
Part Number
309
Description
Locknut,electrical Conduit
CAGE
78229

An item having internal threads designed to fit the external threads of an electrical conduit or fitting for connecting to a junction box, panel, wireway, or other point of termination, and which, when installed, provides a method of tightening to lock the connection. The items may be either flat-sided or circular in external shape and must have a specific conduit size designation. See bondnut, electrical conduit and locknut, tube fitting. Excludes nu t (1), plain hexagon.

Part 309 NSN 5975-00-518-3157

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22895
FIIG:
T390-A
Concept No.:
App. Key:
AA
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:
P
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8543909000
  • SITC: 77879
  • End Use: Electric apparatus
  • NAICS: 335999
  • USDA: 1

Freight Class: Electrical machines and apparatus parts, nesoi

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