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Flat Washers

General Information:

Washers can be manufactured to your specifications. The thickness mentioned below are just suggestions. These type of washers can be made from round, square, or hex materials. Instead of a clear hole, threads may be specified instead. Example ID = 6-32. Also, the dimensional tolerances can be adjusted to meet a more precise fit, i.e Thickness = +-.002 as an example. Other materials can be supplied besides the once that are listed. If you need a type of finish such as zinc plate or passivation let us know and we can quote that as well.

 

Dimensional Tolerances and Material Codes:

Dimensional
Call Out		 Tolerances
Inside
Diameter "ID"		 + - .010
Outside
Diameter "OD"		 +.020 / -.005
Thickness "T"
up to .032		 + - .003
Thickness "T"
.033 to .062		 + - .006
Thickness "T"
.063 to .093		 + - .009
Thickness "T"
.094 and above		 + - .010
Material
Code		 Material
Grade		 Material
Code		 Material
Grade
StSt1 303 COPPER C145
StSt3 416 WN Nylon 6/6
ALUM1 2011 WD Delrin
ALUM2 6061 BD Black Delrin
STL2 12L14 TF Teflon
STL1 1018 UTM Ultem 1000*
BRASS 360 LN Lexan*

 

Recommended Thickness:

Thickness Up to 1/32 Thickness from 1/32 to 1/16 Thickness from 1/16 to 3/16 Thickness larger than 3/16
.010 .040 .093 .250
.016 .045 .125 .312
.020 .060 .156 .375
.032 .062 .187 .500

How to order example:

You need a 3/4" Diameter Washer with a .315" Hole out of 303 Stainless that is 3/16" Thick.
Order part# FW.750-StSt1-.315-.187

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