Click here to submit a custom washer request. We can fabricate nearly all washer dimensions.

Fish-Paper Flat Washers or Spacers is a great choice application because they are strong, flexible, and made from fibrous dielectric paper. Fish-Paper Flat Washers or Spacers are resistant to moderate heat and mechanical injury. Fish-Paper Flat Washers are hygroscopic and must be treated with paraffin for use in moist environments. Some Fish-Paper incorporate mica layers to increase the dielectric strength while still giving good mechanical strength.

  • Available thicknesses from 0.005" to 0.031"
  • Light weight material
  • Easy to punch
  • Resistant to Heat and Cold conditions
  • Excellent physical stength properties
  • Great for Electrical Equipment applications such as Transformers
  • UL Recognized to 94HB

Email us your part drawing(s) by clicking the "REQUEST INFORMATION" tab above and complete our on-line form and we will provide you with a detailed quotation.

Unit of Measure



N/A Fishpaper

Outer Diameter

N/A 1.000 Inch

Outer Diameter Tolerance

N/A ± 0.010 Inch

Inner Diameter

N/A 0.762 Inch

Inner Diameter Tolerance

N/A ± 0.007 Inch

Thickness Tolerance

N/A ± 0.005 Inch


N/A 0.062 Inch