Electrical Ceramic Bush, Color : Off White, White for Industrial Use

These all items are made out of
Steatite C-221.

STEATITE - C221
Basically magnesium silicate
Impervious material structure
Very good Mechanical Strength
High volume resistivity upto 1000 degree C.
Low dissipation factor
Good dielectric strength
Very popular
Cartridge Heaters and End Seals are used at the end portion of Thermocouple or Heaters as Insulator.