Model: 138593

Lock Washer

Properties:

Hole Diameter
Between 0.167 inches and 0.177 inches
Outside Diameter
0.322 inches
Material Thickness
Between 0.017 inches and 0.021 inches
Countersink Angle
Between 80.0 degrees and 82.0 degrees
Material
Steel comp 1060 or steel comp 1070 or steel comp 1078 or steel comp 1080
Material Specification
Astm a576 assn standard all material responses
Surface Treatment
Cadmium or zinc
Style Designator
Countersink external teeth
Nondefinitive Specification/std Data
C type
NSN
5310-00-013-8593
Part Number
138593
Description
Washer,lock
CAGE
19207

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 138593 NSN 5310-00-013-8593

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:
--
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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