Model: 53-31

Hexagon Slotted Plain Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Nut Style
Slotted, hexagon
Nut Height
Between 0.552 inches and 0.572 inches
Width Across Flats
Between 0.678 inches and 0.698 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
20
Hardness Rating
Between 19.0 rockwell c and 26.0 rockwell c
Thread Size
0.438 inches
Bearing Surface Type
Washer faced
Material
Steel comp 1040
Material Specification
Sae assn standard single material response
NSN
5310-00-189-4420
Part Number
53-31
Description
Nut,plain,slotted,hexagon
CAGE
71995

A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, castellated, hexagon.

Part 53-31 NSN 5310-00-189-4420

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01859
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
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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