Model: 1506

Lock Washer

Properties:

Hole Diameter
Between 0.141 inches and 0.150 inches
Outside Diameter
Between 0.285 inches and 0.300 inches
Material Thickness
Between 0.016 inches and 0.020 inches
Hardness Rating
Between 40.0 rockwell c and 50.0 rockwell c
Countersink Angle
Between 80.0 degrees and 84.0 degrees
Material
Steel comp 1050 or steel comp 1551 or steel comp 1552 or steel comp 1053 or steel comp 1054 or steel comp 1055 or steel comp 1059 or steel comp 1060 or steel comp 1561 or steel comp 1064
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification single treatment response
Style Designator
Countersink external teeth
NSN
5310-00-167-0859
Part Number
1506
Description
Washer,lock
CAGE
78189

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 1506 NSN 5310-00-167-0859

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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