Model: 67521-428

Hexagon Self-locking Nut

Properties:

Thread Pitch Diameters
+0.2298/+0.2330 inches
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Nut Style
Hexagon
Nut Height
Between 0.315 inches and 0.330 inches
Width Across Flats
Between 0.430 inches and 0.439 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
28
Hardness Rating
Between 24.0 rockwell c and 37.0 rockwell c
Thread Size
0.250 inches
Bearing Surface Type
Chamfered
Material
Iron alloy 660
Material Specification
Ams 5735 assn standard single material response
NSN
5310-00-148-1185
Part Number
67521-428
Description
Nut,self-locking,hexagon
CAGE
56878

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part 67521-428 NSN 5310-00-148-1185

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05277
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
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:
--
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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