Model: 175187-3

Shouldered Washer

Properties:

Hole Diameter
Between 3.7500 inches and 3.7512 inches
Shoulder Diameter
Between 3.9398 inches and 3.9410 inches
Outside Diameter
4.250 inches
Shoulder Height
0.438 inches
Material Thickness
Between 0.060 inches and 0.065 inches
Surface Finish
100.0 microinches all surfaces
Material
Copper
Material Specification
Qq-c-390 federal specification single material response
Style Designator
Shouldered
NSN
5310-00-520-8959
Part Number
175187-3
Description
Washer,shouldered
CAGE
98897

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 175187-3 NSN 5310-00-520-8959

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:
U
ESD:
ESD:
MMAC:
LE
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114870
UFC:
58890
LTL:
77.5
LCL:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 7415210000
  • SITC: 69432
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Copper washers including spring washers not threaded

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