Model: 421D4

Hexagon Slotted Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Slotted, hexagon
Nut Height
0.875 inches
Width Across Flats
2.625 inches
Thread Series
Un
Thready Qty Per Inch (tpi)
12
Thread Size
1.750 inches
Bearing Surface Type
Chamfered
Material
Steel comp 1212 or steel
Material Specification
Qq-s-637, comp b1121 federal specification 1st material response or sae 1114 assn standard 2nd material response
NSN
5310-00-208-2831
Part Number
421D4
Description
Nut,plain,slotted,hexagon
CAGE
56442

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 421D4 NSN 5310-00-208-2831

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:
U
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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