Model: 8550

Shouldered Washer

Special Features:

0.050 in. Radius notch on outer diameter

Properties:

Hole Diameter
Between 0.752 inches and 0.758 inches
Shoulder Diameter
Between 0.990 inches and 1.010 inches
Outside Diameter
Between 1.590 inches and 1.610 inches
Shoulder Height
Between 0.010 inches and 0.030 inches
Material Thickness
Between 0.060 inches and 0.066 inches
Surface Finish
16.0 microinches bottom
Surface Finish
32.0 microinches top
Material
Copper alloy
Material Specification
Ams 4842 assn standard single material response
Style Designator
Shouldered
NSN
5310-00-484-7032
Part Number
8550
Description
Washer,shouldered
CAGE
11599

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 8550 NSN 5310-00-484-7032

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:
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: 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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