Model: 903313

Lock Washer

Properties:

Hole Diameter
Between 0.088 inches and 0.094 inches
Outside Diameter
0.172 inches
Material Thickness
Between 0.020 inches and 0.026 inches
Hardness Rating
Between 35.0 rockwell c and 45.0 rockwell c or 45.0 rockwell c and 53.0 rockwell c
Material
Stainless steel
Material Specification
66 federal specification single material response
Surface Treatment
Passivate
Special Test Features
Fleet ballistic missile quality as identified by quality control no. Poso 911861
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Style Designator
Split helical-right hand
Departure From Cited Designator
As modified by special test features
NSN
5310-00-722-5652
Part Number
903313
Description
Washer,lock
CAGE
D0078

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 903313 NSN 5310-00-722-5652

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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