McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    70 Products

    Extra-High-Temperature Mica Washers

    Image of Product. Front orientation. Washers. Extra-High-Temperature Mica Washers.
    These washers won't melt, stick, or become brittle, even when exposed to temperatures as high as 1050° F. They make excellent insulators and are often used to secure electrical connections in transformers. Mica can chip and flake due to wear, however, so these washers are not recommended for high-vibration applications.
    Temp.
    Range
    For Screw
    Size
    ID
    OD
    Thk.
    Min.
    Max.,
    ° F
    Color
    Pkg.
    Qty.
    Pkg.
    No. 0
    		0.072"0.219"0.004" to 0.006"Not Rated1,050Beige500000000000000
    No. 2
    		0.098"0.265"0.001" to 0.003"Not Rated1,050Beige100000000000000
    No. 3
    		0.109"0.312"0.004" to 0.006"Not Rated1,050Beige50000000000000
    No. 4
    		0.118"0.375"0.001" to 0.003"Not Rated1,050Beige100000000000000
    No. 6
    		0.156"0.296"0.001" to 0.003"Not Rated1,050Beige100000000000000
    No. 8
    		0.176"0.375"0.004" to 0.006"Not Rated1,050Beige100000000000000
    No. 10
    		0.195"0.750"0.004" to 0.006"Not Rated1,050Beige100000000000000

    Electrically Insulating Mica Tubes

    Image of Product. Front orientation. Mica. Electrically Insulating Mica Tubes.
    Also called muscovite mica, this mica is an excellent electrical insulator that resists temperatures up to 930° F. It's often used to insulate circuit breakers and heating elements.
    OD
    ID
    Wall
    Thk.
    Lg.
    Color
    Max. Temp.,
    ° F
    Dielectric Strength,
    V/mil
    Each
    3/8"1/4"1/16"24"Silver with Brown Spots9305500000000000000
    1/2"3/8"1/16"24"Silver with Brown Spots930550000000000000
    5/8"5/16"5/32"24"Silver with Brown Spots930550000000000000
    5/8"1/2"1/16"24"Silver with Brown Spots930550000000000000
    3/4"1/2"1/8"24"Silver with Brown Spots930550000000000000
    3/4"5/8"1/16"24"Silver with Brown Spots930550000000000000

    Extra High-Temperature Easy-Machine Glass-Mica Ceramic Rods

    Image of Product. Front orientation. Ceramic. Extra High-Temperature Easy-Machine Glass-Mica Ceramic Rods.
    Also known as Macor, this glass-mica ceramic withstands temperatures up to 1470° F. You can machine complicated shapes and precision parts from it in a fraction of the time it would take using other types of fired ceramic. Its good electrical and thermal resistance make it a common choice for heating and soldering fixtures.
    Temp.
    3" Lg.
    6" Lg.
    12" Lg.
    Dia.
    Dia. Tolerance
    Color
    Min.
    Max.,
    ° F
    Fabrication
    Performance
    Dielectric Strength,
    V/mil
    Porosity
    Compressive
    Strength, psi
    Hardness
    Each
    Each
    Each
    1/8"0.000" to 0.015"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A48000000000000000000000000000000000000000
    3/16"0.000" to 0.015"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A48000000000000000000000000000000000000
    1/4"0.000" to 0.015"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A48000000000000000000000000000000000000
    5/16"0.000" to 0.015"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A480000000000000000000000000000000000000
    3/8"0.000" to 0.015"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A480000000000000000000000000000000000000
    1/2"0.000" to 0.015"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A480000000000000000000000000000000000000
    5/8"0.000" to 0.015"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A4800000000000000000000000000000000000000
    3/4"0.000" to 0.015"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A4800000000000000000000000000000000000000000
    7/8"0.000" to 0.060"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A4800000000000000000000000000000000000000
    1"0.000" to 0.060"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A48000000000000000000000000000000000000000
    1 1/2"0.000" to 0.125"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A48000000000000000000000000000000000000000
    2"0.000" to 0.125"WhiteNot Rated1,470FiredEasy Machine, Electrically Insulating, Extra High Temperature1,14013%32,000Rockwell A48000000000000000000000000000000000000000
     

    Easy-Machine Glass-Mica Ceramic Rods

    Image of Product. Front orientation. Ceramic. Easy-Machine Glass-Mica Ceramic Rods.
    Machine complicated shapes and precision parts from this glass-mica ceramic in a fraction of the time it would take using other types of fired ceramic. Its good electrical and thermal resistance make it a common choice for heating and soldering fixtures. Also known as Mykroy/Mycalex.
    Temp.,
    ° F
    3" Lg.
    6" Lg.
    12" Lg.
    Dia.
    Dia. Tolerance
    Color
    Min.
    Max.
    Fabrication
    Performance
    Dielectric Strength,
    V/mil
    Porosity
    Compressive
    Strength, psi
    Hardness
    Each
    Each
    Each
    1/4"-0.005" to 0.005"Gray-330930FiredEasy Machine, Electrically Insulating53013%40,000Rockwell H90000000000000000000000000000000000000000000
    3/8"-0.005" to 0.005"Gray-330930FiredEasy Machine, Electrically Insulating53013%40,000Rockwell H90000000000000000000000000000000000000000
    1/2"-0.005" to 0.005"Gray-330930FiredEasy Machine, Electrically Insulating53013%40,000Rockwell H90000000000000000000000000000000000000000
    5/8"-0.005" to 0.005"Gray-330930FiredEasy Machine, Electrically Insulating53013%40,000Rockwell H900000000000000000000000000000000000000000
    3/4"-0.005" to 0.005"Gray-330930FiredEasy Machine, Electrically Insulating53013%40,000Rockwell H900000000000000000000000000000000000000000
    1"-0.005" to 0.005"Gray-330930FiredEasy Machine, Electrically Insulating53013%40,000Rockwell H9000000000000000000000000000000000000000000
    1 1/4"-0.005" to 0.005"Gray-330930FiredEasy Machine, Electrically Insulating53013%40,000Rockwell H9000000000000000000000000000000000000000000
     
    back to top