Model: 503A2-8

Lock Washer

Properties:

Hole Diameter
Between 0.256 inches and 0.267 inches
Outside Diameter
Between 0.466 inches and 0.478 inches
Material Thickness
Between 0.020 inches and 0.030 inches
Material
Steel comp 410
Material Specification
Qq-s-763, class 410, cond a federal specification single material response
Surface Treatment
Passivate
Style Designator
Flat internal teeth
NSN
5310-00-576-5492
Part Number
503A2-8
Description
Washer,lock
CAGE
94033

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 503A2-8 NSN 5310-00-576-5492

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
50.0
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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