Model: 453303

Lock Washer

Properties:

Hole Diameter
Between 0.255 inches and 0.267 inches
Outside Diameter
0.489 inches
Material Thickness
0.047 inches
Hardness Rating
Between 45.0 rockwell c and 53.0 rockwell c
Material
Steel comp 1060 or steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1071 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080
Material Specification
Qq-s-633 federal specification all material responses
Surface Treatment
Cadmium and dichromate
Style Designator
Split helical-right hand
Nondefinitive Specification/std Data
A class and 1 style
NSN
5310-00-045-3303
Part Number
453303
Description
Washer,lock
CAGE
7X677

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 453303 NSN 5310-00-045-3303

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:
U
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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