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    System of Measurement
    System of Measurement
    Inch
    Length
    Length
    3/8"
    3/4"
    Shape
    Shape
    Rod and Disc
    Material
    Material
    Glass
    Color
    Color
    Clear
    Fabrication
    Fabrication
    Annealed
    Tempered
    Maximum Temperature
    Maximum Temperature
    250° to 499° F
    500° to 999° F
    Edge Fabrication
    Edge Fabrication
    Ground
    Clarity
    Clarity
    Clear
    Specifications Met
    Specifications Met
    MIL-G-47033
    MIL-G-2860
    Thermal Conductivity
    Thermal Conductivity
    1.2 Btu/hr. × in./sq. ft./°F @
    212° F
    Refractive Index
    Refractive Index
    1.47
    Modulus of Elasticity
    Modulus of Elasticity
    63 KN/mm2
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    Density
    Density
    0.08 lbs./cu. in.
    Hardness
    Hardness
    Knoop 418 KHN100
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    Minimum Temperature
    Minimum Temperature
    Not Rated
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