Model: 02263-1

Extended Washer Self-locking Nut

Special Features:

Safety critical thread per federal standard h28/20 system 22

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.708 inches
Lubrication
Dry film lubricant
Overall Height
Between 0.313 inches and 0.328 inches
Nut Style
Hexagon
Washer Thickness
0.035 inches
Width Across Flats
Between 0.494 inches and 0.504 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
20
Thread Size
0.438 inches
Criticality Code Justification
Feat
Material
Steel comp 4130 or steel comp 4135 or steel comp 4140
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, ty1, cl1 federal specification single treatment response
NSN
5310-01-388-8542
Part Number
02263-1
Description
Nut,self-locking,extended Washer
CAGE
14153

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part 02263-1 NSN 5310-01-388-8542

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29730
FIIG:
A021A0
Concept No.:
1
App. Key:
BT
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:
Y

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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