Model: 4302

Lock Washer

Properties:

Hole Diameter
Between 0.318 inches and 0.328 inches
Outside Diameter
0.586 inches
Material Thickness
Between 0.078 inches and 0.088 inches
Hardness Rating
Between 45.0 rockwell c and 53.0 rockwell c
Material
Steel comp 1060 or steel comp 1070 or steel comp 1078 or steel comp 1080
Material Specification
66 federal standard all material responses
Surface Treatment
Cadmium and zinc
Surface Treatment Specification
Qq-p-416 federal specification 1st treatment response and qq-z-325 federal specification 2nd treatment response
Style Designator
Split helical-right hand
Nondefinitive Specification/std Data
2 style and a class
NSN
5310-00-012-0214
Part Number
4302
Description
Washer,lock
CAGE
23382

A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

Part 4302 NSN 5310-00-012-0214

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
14218
FIIG:
A022B0
Concept No.:
1
App. Key:
A
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

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Schedule B and Export
  • Schedule B: 7318210000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel

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