Model: 143688

Shouldered Washer

Properties:

Hole Diameter
Between 0.154 inches and 0.162 inches
Shoulder Diameter
0.250 inches
Outside Diameter
Between 0.453 inches and 0.468 inches
Shoulder Height
Between 0.040 inches and 0.045 inches
Material Thickness
0.069 inches
Material
Steel
Material Specification
Astm a582, cl 303, cond a assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-std-171, finish no. 5.4.1. Military standard single treatment response
Style Designator
Shouldered
NSN
5310-01-142-5348
Part Number
143688
Description
Washer,shouldered
CAGE
21877

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

Part 143688 NSN 5310-01-142-5348

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15934
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194120
UFC:
95100
LTL:
RATING VARIABLE
LCL:
77.5
WCC:
713
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 7318220000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Washers other than lock washers, iron or steel

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