Model: 31999-2

Clinch Plain Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Pilot Diameter
Between 0.333 inches and 0.336 inches
Pilot Length
Between 0.139 inches and 0.142 inches
Nut Style
Clinch
Nut Diameter
Between 0.427 inches and 0.447 inches
Nut Height
Between 0.240 inches and 0.250 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
20
Thread Size
0.250 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel
NSN
5310-00-596-8724
Part Number
31999-2
Description
Nut,plain,clinch
CAGE

A nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole.

Part 31999-2 NSN 5310-00-596-8724

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01860
FIIG:
A021A0
Concept No.:
1
App. Key:
AK
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:
093490
UFC:
50270
LTL:
50.0
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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