Model: 397D109

Square Plain Nut

Properties:

Thread Direction
Right-hand
Nut Style
Square
Width Across Flats
0.625 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
20
Thread Size
0.250 inches
Bearing Surface Type
Flat
Material
Stainless steel
NSN
5310-01-343-9737
Part Number
397D109
Description
Nut,plain,square
CAGE
K2383

A nut, flat on top and bottom, having 4 flat sides. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 397D109 NSN 5310-01-343-9737

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01858
FIIG:
A021A0
Concept No.:
1
App. Key:
AG
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

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Schedule B and Export
  • Schedule B: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Nuts of iron or steel

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