Model: 721583-2

Extended Washer Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.350 inches
Overall Height
0.250 inches
Nut Style
Double hexagon
Washer Thickness
0.015 inches
Width Across Flats
Between 0.245 inches and 0.251 inches
Tempurature Rating
900.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
32
Hardness Rating
45.0 rockwell c
Thread Size
0.190 inches
Material
Stainless steel
Material Specification
Ams5735, fscm 99167 assn standard single material response
Surface Treatment
Silver
Surface Treatment Specification
Qq-s-365, grade b federal specification single treatment response
NSN
5310-01-144-3928
Part Number
721583-2
Description
Nut,self-locking,extended Washer
CAGE
99167

A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part 721583-2 NSN 5310-01-144-3928

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29729
FIIG:
A021A0
Concept No.:
1
App. Key:
BS
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:
S
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093480
UFC:
48950
LTL:
100.0
LCL:
100.0
WCC:
713
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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