Home | Mica Flat Washers - High-Temperature Electrical Insulation Washers

Mica Flat Washers - High-Temperature Electrical Insulation Washers

Mica flat washers offer outstanding electrical insulation and thermal resistance, maintaining performance at temperatures up to 600°C or higher. They are used in heating elements, electrical equipment, motors, and high-temperature industrial applications where both heat resistance and electrical isolation are essential.

Superior Washer & Gasket Corp manufactures mica washers in standard and custom sizes with ISO 9001:2015 certified quality management. Our high-performance insulating washer capabilities include mica, Kapton, fiberglass, and phenolic options-all made in the U.S.A. to your precise dimensional requirements.

  • High-temperature electrical insulation up to 600°C+
  • Natural mica material for consistent thermal performance
  • Standard and custom mica washer configurations
  • ISO 9001:2015 certified manufacturing
  • Made in the U.S.A.

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Showing 51–78 of 78 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

750-35-010

ID 0.25
OD 0.5
Thickness 0.01
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-35-010t

ID
OD
Thickness 0.01
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-36-016

ID 0.257
OD 0.62
Thickness 0.016
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-36-016t

ID
OD
Thickness 0.016
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-37-003

ID 0.26
OD 0.875
Thickness 0.003
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-37-003t

ID
OD
Thickness 0.003
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-38-005

ID 0.261
OD 0.75
Thickness 0.005
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-38-005t

ID
OD
Thickness 0.005
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-39-003

ID 0.265
OD 0.625
Thickness 0.003
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-39-003t

ID
OD
Thickness 0.003
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-40-002

ID 0.265
OD 0.843
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-40-002t

ID
OD
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-42-002

ID 0.321
OD 0.88
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-42-002t

ID
OD
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-43-002

ID 0.325
OD 0.812
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-43-002t

ID
OD
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-44-062

ID 0.395
OD 1.0
Thickness 0.062
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-44-062t

ID
OD
Thickness 0.062
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-45-010

ID 0.5
OD 1.375
Thickness 0.01
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-45-010t

ID
OD
Thickness 0.01
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-46-062

ID 0.5
OD 1.5
Thickness 0.062
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-46-062t

ID
OD
Thickness 0.062
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-48-031

ID 0.796
OD 1.5
Thickness 0.031
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-48-031t

ID
OD
Thickness 0.031
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-49-030

ID 0.191
OD 0.755
Thickness 0.03
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-49-030t

ID
OD
Thickness 0.03
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-49-040

ID 0.25
OD 1.25
Thickness 0.04
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-49-040t

ID
OD
Thickness 0.04
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity