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    9 Products

    Pressure-Rated Borosilicate Glass Discs

    Image of Product. Front orientation. Glass. Pressure-Rated Borosilicate Glass Discs.
    Commonly used as sight glass. Also called Pyrex and Schott glass, borosilicate glass resists clouding and pitting and is highly chemical and heat resistant. With a low rate of thermal expansion, it stays dimensionally stable during changes in temperature.
    Tempered—Tempered glass is stronger than annealed glass.
    Temp.
    Dia.
    Dia. Tolerance
    Lg.
    Lg. Tolerance
    Edge
    Fabrication
    Max. Pressure,
    psi
    Min.
    Max.,
    ° F
    Mil.
    Spec.
    Color
    Each
    Tempered
    3 1/2"-0.015" to 0.015"3/4"-0.031" to 0.031"Ground525Not Rated500MIL-G-2860Clear8475K81000000
    4"-0.015" to 0.015"3/4"-0.031" to 0.031"Ground450Not Rated500MIL-G-2860Clear8475K8200000
    4 1/2"-0.015" to 0.015"3/8"-0.031" to 0.031"Ground100Not Rated500MIL-G-2860Clear8475K83000000
    5"-0.015" to 0.015"3/4"-0.031" to 0.031"Ground300Not Rated500MIL-G-2860Clear8475K84000000
    6"-0.015" to 0.015"3/4"-0.031" to 0.031"Ground225Not Rated500MIL-G-2860Clear8475K63000000
    6 3/4"-0.015" to 0.015"3/4"-0.031" to 0.031"Ground180Not Rated500MIL-G-2860Clear8475K64000000
    8 3/8"-0.015" to 0.015"3/4"-0.031" to 0.031"Ground105Not Rated500MIL-G-2860Clear8475K65000000
    9"-0.015" to 0.015"3/4"-0.031" to 0.031"Ground95Not Rated500MIL-G-2860Clear8475K66000000
    10"-0.015" to 0.015"3/4"-0.031" to 0.031"Ground85Not Rated500MIL-G-2860Clear8475K67000000
     
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