John C. Ernst Co, Inc.
John C. Ernst Co, Inc.
21 Gail Court
Sparta, NJ 07871-3438
USA

Toll Free: 888.943.5000
Phone: 973.940.1600
Fax: 973.940.1620
Email: sales@johnernst.com
Website: www.johnernst.com
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Series G12 Annealed Borosilicate Glass Disc
Unit of Measure
1 2 

Model #

Product Type

Diameter

Thickness

Non-Steam Rating

G12-530-__.___-_.___ N/A Glass Disc N/A N/A N/A 446 ºF
G12-530-00.734-0.256 N/A Glass Disc N/A 0.734 in. N/A 0.250 in. N/A 446 ºF
G12-530-00.750-0.130 N/A Glass Disc N/A 0.750 in. N/A 0.125 in. N/A 446 ºF
G12-530-00.922-0.256 N/A Glass Disc N/A 0.922 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.172-0.256 N/A Glass Disc N/A 1.172 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.250-0.197 N/A Glass Disc N/A 1.250 in. N/A 0.188 in. N/A 446 ºF
G12-530-01.531-0.256 N/A Glass Disc N/A 1.531 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.375-0.130 N/A Glass Disc N/A 1.375 in. N/A 0.125 in. N/A 446 ºF
G12-530-01.500-0.130 N/A Glass Disc N/A 1.500 in. N/A 0.125 in. N/A 446 ºF
G12-530-01.563-0.256 N/A Glass Disc N/A 1.563 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.719-0.256 N/A Glass Disc N/A 1.719 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.750-0.130 N/A Glass Disc N/A 1.750 in. N/A 0.125 in. N/A 446 ºF
G12-530-01.750-0.197 N/A Glass Disc N/A 1.750 in. N/A 0.188 in. N/A 446 ºF
G12-530-01.750-0.256 N/A Glass Disc N/A 1.750 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.750-0.354 N/A Glass Disc N/A 1.750 in. N/A 0.375 in. N/A 446 ºF
G12-530-01.750-0.512 N/A Glass Disc N/A 1.750 in. N/A 0.500 in. N/A 446 ºF
G12-530-01.800-0.256 N/A Glass Disc N/A 1.800 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.938-0.256 N/A Glass Disc N/A 1.938 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.950-0.256 N/A Glass Disc N/A 1.950 in. N/A 0.250 in. N/A 446 ºF
G12-530-01.968-0.354 N/A Glass Disc N/A 1.969 in. N/A 0.354 in. N/A 446 ºF
G12-530-02.000-0.130 N/A Glass Disc N/A 2.000 in. N/A 0.125 in. N/A 446 ºF
G12-530-02.000-0.197 N/A Glass Disc N/A 2.000 in. N/A 0.188 in. N/A 446 ºF
G12-530-02.000-0.256 N/A Glass Disc N/A 2.000 in. N/A 0.250 in. N/A 446 ºF
G12-530-02.000-0.354 N/A Glass Disc N/A 2.000 in. N/A 0.375 in. N/A 446 ºF
G12-530-02.125-0.256 N/A Glass Disc N/A 2.125 in. N/A 0.250 in. N/A 446 ºF
G12-530-02.125-0.354 N/A Glass Disc N/A 2.125 in. N/A 0.375 in. N/A 446 ºF
G12-530-02.218-0.130 N/A Glass Disc N/A 2.218 in. N/A 0.125 in. N/A 446 ºF
G12-530-02.218-0.197 N/A Glass Disc N/A 2.218 in. N/A 0.188 in. N/A 446 ºF
G12-530-02.250-0.130 N/A Glass Disc N/A 2.250 in. N/A 0.125 in. N/A 446 ºF
G12-530-02.250-0.197 N/A Glass Disc N/A 2.250 in. N/A 0.188 in. N/A 446 ºF
G12-530-02.250-0.256 N/A Glass Disc N/A 2.250 in. N/A 0.250 in. N/A 446 ºF
G12-530-02.375-0.197 N/A Glass Disc N/A 2.375 in. N/A 0.188 in. N/A 446 ºF
G12-530-02.375-0.256 N/A Glass Disc N/A 2.375 in. N/A 0.250 in. N/A 446 ºF
G12-530-02.438-0.197 N/A Glass Disc N/A 2.438 in. N/A 0.188 in. N/A 446 ºF
G12-530-02.500-0.197 N/A Glass Disc N/A 2.500 in. N/A 0.188 in. N/A 446 ºF
G12-530-02.500-0.256 N/A Glass Disc N/A 2.500 in. N/A 0.250 in. N/A 446 ºF
G12-530-02.500-0.354 N/A Glass Disc N/A 2.500 in. N/A 0.375 in. N/A 446 ºF
G12-530-02.500-0.512 N/A Glass Disc N/A 2.500 in. N/A 0.500 in. N/A 446 ºF
G12-530-02.625-0.256 N/A Glass Disc N/A 2.625 in. N/A 0.250 in. N/A 446 ºF
G12-530-02.750-0.256 N/A Glass Disc N/A 2.750 in. N/A 0.250 in. N/A 446 ºF
G12-530-02.750-0.512 N/A Annealed Borosilicate Glass Disc N/A 2.750 in. N/A 0.500 in. N/A 446 ºF
G12-530-02.875-0.256 N/A Annealed Borosilicate Glass Disc N/A 2.875 in. N/A 0.250 in. N/A 446 ºF
G12-530-03.000-0.256 N/A Annealed Borosilicate Glass Disc N/A 3.000 in. N/A 0.250 in. N/A 446 ºF
G12-530-03.000-0.354 N/A Annealed Borosilicate Glass Disc N/A 3.000 in. N/A 0.375 in. N/A 446 ºF
G12-530-03.000-0.512 N/A Annealed Borosilicate Glass Disc N/A 3.000 in. N/A 0.500 in. N/A 446 ºF
G12-530-03.250-0.256 N/A Annealed Borosilicate Glass Disc N/A 3.250 in. N/A 0.250 in. N/A 446 ºF
G12-530-03.375-0.256 N/A Annealed Borosilicate Glass Disc N/A 3.375 in. N/A 0.250 in. N/A 446 ºF
G12-530-03.438-0.197 N/A Annealed Borosilicate Glass Disc N/A 3.438 in. N/A 0.188 in. N/A 446 ºF
G12-530-03.500-0.197 N/A Annealed Borosilicate Glass Disc N/A 3.500 in. N/A 0.188 in. N/A 446 ºF
G12-530-03.500-0.512 N/A Annealed Borosilicate Glass Disc N/A 3.500 in. N/A 0.500 in. N/A 446 ºF
G12-530-03.625-0.512 N/A Annealed Borosilicate Glass Disc N/A 3.625 in. N/A 0.500 in. N/A 446 ºF
G12-530-03.750-0.256 N/A Annealed Borosilicate Glass Disc N/A 3.750 in. N/A 0.250 in. N/A 446 ºF
G12-530-03.750-0.354 N/A Annealed Borosilicate Glass Disc N/A 3.750 in. N/A 0.375 in. N/A 446 ºF
G12-530-04.000-0.130 N/A Annealed Borosilicate Glass Disc N/A 4.000 in. N/A 0.125 in. N/A 446 ºF
G12-530-04.000-0.256 N/A Annealed Borosilicate Glass Disc N/A 4.000 in. N/A 0.250 in. N/A 446 ºF
G12-530-04.000-0.512 N/A Annealed Borosilicate Glass Disc N/A 4.000 in. N/A 0.500 in. N/A 446 ºF
G12-530-04.000-0.7482 N/A Annealed Borosilicate Glass Disc N/A 4.000 in. N/A 0.750 in. N/A 446 ºF
G12-530-04.250-0.256 N/A Annealed Borosilicate Glass Disc N/A 4.250 in. N/A 0.250 in. N/A 446 ºF
G12-530-04.250-0.512 N/A Annealed Borosilicate Glass Disc N/A 4.250 in. N/A 0.500 in. N/A 446 ºF
G12-530-04.313-0.512 N/A Annealed Borosilicate Glass Disc N/A 4.313 in. N/A 0.500 in. N/A 446 ºF
G12-530-04.470-0.512 N/A Annealed Borosilicate Glass Disc N/A 4.470 in. N/A 0.500 in. N/A 446 ºF
G12-530-04.500-0.130 N/A Annealed Borosilicate Glass Disc N/A 0.500 in. N/A 0.125 in. N/A 446 ºF
G12-530-04.500-0.197 N/A Annealed Borosilicate Glass Disc N/A 0.500 in. N/A 0.188 in. N/A 446 ºF
G12-530-04.500-0.256 N/A Annealed Borosilicate Glass Disc N/A 0.500 in. N/A 0.250 in. N/A 446 ºF
G12-530-04.500-0.512 N/A Annealed Borosilicate Glass Disc N/A 0.500 in. N/A 0.500 in. N/A 446 ºF
G12-530-05.000-0.197 N/A Annealed Borosilicate Glass Disc N/A 5.000 in. N/A 0.188 in. N/A 446 ºF
G12-530-05.000-0.748 N/A Annealed Borosilicate Glass Disc N/A 5.000 in. N/A 0.750 in. N/A 446 ºF
G12-530-06.000-0.748 N/A Annealed Borosilicate Glass Disc N/A 6.000 in. N/A 0.750 in. N/A 446 ºF
G12-530-06.000-1.0000 N/A Annealed Borosilicate Glass Disc N/A 6.000 in. N/A 1.000 in. N/A 446 ºF
G12-530-06.500-0.748 N/A Annealed Borosilicate Glass Disc N/A 6.500 in. N/A 0.750 in. N/A 446 ºF
G12-530-06.625-0.748 N/A Annealed Borosilicate Glass Disc N/A 6.625 in. N/A 0.750 in. N/A 446 ºF
G12-530-06.750-0.748 N/A Annealed Borosilicate Glass Disc N/A 6.750 in. N/A 0.750 in. N/A 446 ºF
G12-530-07.000-0.748 N/A Annealed Borosilicate Glass Disc N/A 7.000 in. N/A 0.750 in. N/A 446 ºF
G12-530-07.375-0.748 N/A Annealed Borosilicate Glass Disc N/A 7.375 in. N/A 0.750 in. N/A 446 ºF
G12-530-07.500-0.512 N/A Annealed Borosilicate Glass Disc N/A 7.500 in. N/A 0.500 in. N/A 446 ºF
G12-530-08.000-0.512 N/A Annealed Borosilicate Glass Disc N/A 8.000 in. N/A 0.500 in. N/A 446 ºF
G12-530-08.250-0.748 N/A Annealed Borosilicate Glass Disc N/A 8.250 in. N/A 0.750 in. N/A 446 ºF
G12-530-08.375-0.748 N/A Annealed Borosilicate Glass Disc N/A 8.375 in. N/A 0.750 in. N/A 446 ºF
G12-530-08.750-0.748 N/A Annealed Borosilicate Glass Disc N/A 8.750 in. N/A 0.750 in. N/A 446 ºF
G12-530-09.750-0.748 N/A Annealed Borosilicate Glass Disc N/A 9.750 in. N/A 0.750 in. N/A 446 ºF
G12-530-09.375-0.748 N/A Annealed Borosilicate Glass Disc N/A 9.875 in. N/A 0.750 in. N/A 446 ºF
G12-530-10.500-1.000 N/A Annealed Borosilicate Glass Disc N/A 10.500 in. N/A 1.000 in. N/A 446 ºF
G12-530-11.250-1.000 N/A Annealed Borosilicate Glass Disc N/A 11.250 in. N/A 1.000 in. N/A 446 ºF
G12-530-12.000-0.748 N/A Annealed Borosilicate Glass Disc N/A 12.000 in. N/A 0.750 in. N/A 446 ºF
G12-532-__.___-_.___ N/A Furnace Glass Disc N/A N/A 0.250 in. N/A 446 ºF
G12-532-01.750-0.197 N/A Furnace Glass Disc N/A 1.750 in. N/A 0.188 in. N/A 446 ºF
G12-532-02.125-0.197 N/A Furnace Glass Disc N/A 2.125 in. N/A 0.188 in. N/A 446 ºF
G12-532-02.187-0.197 N/A Furnace Glass Disc N/A 2.813 in. N/A 0.188 in. N/A 446 ºF
G12-532-02.750-0.256 N/A Furnace Glass Disc N/A 2.750 in. N/A 0.250 in. N/A 446 ºF
G12-532-03.875-0.197 N/A Furnace Glass Disc N/A 3.875 in. N/A 0.188 in. N/A 446 ºF
G12-532-03.875-0.256 N/A Furnace Glass Disc N/A 3.875 in. N/A 0.250 in. N/A 446 ºF
G12-532-04.000-0.197 N/A Furnace Glass Disc N/A 4.000 in. N/A 0.188 in. N/A 446 ºF
G12-532-04.250-0.256 N/A Furnace Glass Disc N/A 4.250 in. N/A 0.250 in. N/A 446 ºF
G12-532-05.000-0.197 N/A Furnace Glass Disc N/A 5.000 in. N/A 0.188 in. N/A 446 ºF
G12-536-__.___-_.___ N/A Quartz Glass Disc N/A N/A N/A 2048 ºF
G12-536-00.938-0.256 N/A Quartz Glass Disc N/A 0.938 in. N/A 0.250 in. N/A 2048 ºF
G12-536-01.187-0.130 N/A Quartz Glass Disc N/A 1.813 in. N/A 0.125 in. N/A 2048 ºF
G12-536-01.500-0.130 N/A Quartz Glass Disc N/A 1.500 in. N/A 0.125 in. N/A 2048 ºF
G12-536-02.000-0.130 N/A Quartz Glass Disc N/A 2.000 in. N/A 0.125 in. N/A 2048 ºF
G12-536-02.000-0.256 N/A Quartz Glass Disc N/A 2.000 in. N/A 0.250 in. N/A 2048 ºF
G12-536-02.250-0.197 N/A Quartz Glass Disc N/A 2.250 in. N/A 0.188 in. N/A 2048 ºF
G12-536-02.500-0.130 N/A Quartz Glass Disc N/A 0.500 in. N/A 0.125 in. N/A 2048 ºF
G12-536-02.500-0.512 N/A Quartz Glass Disc N/A 0.500 in. N/A 0.500 in. N/A 2048 ºF
G12-536-03.000-0.197 N/A Quartz Glass Disc N/A 3.000 in. N/A 0.188 in. N/A 2048 ºF
G12-536-03.000-0.256 N/A Quartz Glass Disc N/A 3.000 in. N/A 0.250 in. N/A 2048 ºF
G12-536-03.875-0.512 N/A Quartz Glass Disc N/A 3.875 in. N/A 0.500 in. N/A 2048 ºF
G12-536-04.000-0.256 N/A Quartz Glass Disc N/A 4.000 in. N/A 0.250 in. N/A 2048 ºF
G12-536-04.000-0.512 N/A Quartz Glass Disc N/A 4.000 in. N/A 0.500 in. N/A 2048 ºF
G12-536-04.000-0.630 N/A Quartz Glass Disc N/A 4.000 in. N/A 0.625 in. N/A 2048 ºF
G12-536-04.375-0.197 N/A Quartz Glass Disc N/A 4.375 in. N/A 0.188 in. N/A 2048 ºF
G12-536-04.500-0.354 N/A Quartz Glass Disc N/A 4.500 in. N/A 0.375 in. N/A 2048 ºF
G12-536-05.000-0.512 N/A Quartz Glass Disc N/A 5.000 in. N/A 0.500 in. N/A 2048 ºF
G12-536-05.000-0.630 N/A Quartz Glass Disc N/A 5.000 in. N/A 0.625 in. N/A 2048 ºF
G12-536-05.000-0.748 N/A Quartz Glass Disc N/A 5.000 in. N/A 0.750 in. N/A 2048 ºF
G12-536-06.000-0.748 N/A Quartz Glass Disc N/A 6.000 in. N/A 0.750 in. N/A 2048 ºF
G12-538-__.___-_.___ N/A Heat Strengthened Borosilicate Glass Disc N/A N/A N/A 500 ºF
G12-538-00.734-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 0.734 in. N/A 0.250 in. N/A 500 ºF
G12-538-00.750-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 0.750 in. N/A 0.250 in. N/A 500 ºF
G12-538-00.922-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 0.922 in. N/A 0.250 in. N/A 500 ºF
G12-538-01.125-0.130 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.125 in. N/A 0.125 in. N/A 500 ºF
G12-538-01.172-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.172 in. N/A 0.250 in. N/A 500 ºF
G12-538-01.250-0.197 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.250 in. N/A 0.188 in. N/A 500 ºF
G12-538-01.250-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.250 in. N/A 0.250 in. N/A 500 ºF
G12-538-01.500-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.500 in. N/A 0.250 in. N/A 500 ºF
G12-538-01.531-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.531 in. N/A 0.250 in. N/A 500 ºF
G12-538-01.563-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.563 in. N/A 0.250 in. N/A 500 ºF
G12-538-01.750-0.130 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.750 in. N/A 0.125 in. N/A 500 ºF
G12-538-01.750-0.197 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.750 in. N/A 0.188 in. N/A 500 ºF
G12-538-01.750-0.256 N/A Tempered Borosilicate Glass Disc N/A 1.750 in. N/A 0.250 in. N/A 500 ºF
G12-538-01.750-0.354 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.750 in. N/A 0.375 in. N/A 500 ºF
G12-538-01.800-0.130 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.800 in. N/A 0.125 in. N/A 500 ºF
G12-538-01.800-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.800 in. N/A 0.250 in. N/A 500 ºF
G12-538-01.811-0.197 N/A Heat Strengthened Borosilicate Glass Disc N/A 1.811 in. N/A 0.188 in. N/A 500 ºF
G12-538-02.000-0.130 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.000 in. N/A 0.125 in. N/A 500 ºF
G12-538-02.000-0.256 N/A Tempered Borosilicate Glass Disc N/A 2.000 in. N/A 0.250 in. N/A 500 ºF
G12-538-02.000-0.354 N/A Tempered Borosilicate Glass Disc N/A 2.000 in. N/A 0.375 in. N/A 500 ºF
G12-538-02.000-0.512 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.000 in. N/A 0.500 in. N/A 500 ºF
G12-538-02.125-0.130 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.125 in. N/A 0.125 in. N/A 500 ºF
G12-538-02.125-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.125 in. N/A 0.250 in. N/A 500 ºF
G12-538-02.250-0.197 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.250 in. N/A 0.188 in. N/A 500 ºF
G12-538-02.250-0.256 N/A Tempered Borosilicate Glass Disc N/A 2.250 in. N/A 0.250 in. N/A 500 ºF
G12-538-02.250-0.354 N/A Tempered Borosilicate Glass Disc N/A 2.250 in. N/A 0.375 in. N/A 500 ºF
G12-538-02.250-0.512 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.250 in. N/A 0.500 in. N/A 500 ºF
G12-538-02.375-0.256 N/A Tempered Borosilicate Glass Disc N/A 2.375 in. N/A 0.250 in. N/A 500 ºF
G12-538-02.500-0.354 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.500 in. N/A 0.375 in. N/A 500 ºF
G12-538-02.625-0.256 N/A Tempered Borosilicate Glass Disc N/A 2.625 in. N/A 0.250 in. N/A 500 ºF
G12-538-02.625-0.512 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.625 in. N/A 0.500 in. N/A 500 ºF
G12-538-02.750-0.197 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.750 in. N/A 0.188 in. N/A 500 ºF
G12-538-02.750-0.256 N/A Tempered Borosilicate Glass Disc N/A 2.750 in. N/A 0.250 in. N/A 500 ºF
G12-538-02.750-0.512 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.750 in. N/A 0.500 in. N/A 500 ºF
G12-538-02.938-0.256 N/A Tempered Borosilicate Glass Disc N/A 2.938 in. N/A 0.250 in. N/A 500 ºF
G12-538-02.992-0.256 N/A Heat Strengthened Borosilicate Glass Disc N/A 2.992 in. N/A 0.750 in. N/A 500 ºF
G12-538-03.000-0.130 N/A Heat Strengthened Borosilicate Glass Disc N/A 3.000 in. N/A 0.125 in. N/A 500 ºF
G12-538-03.000-0.197 N/A Heat Strengthened Borosilicate Glass Disc N/A 3.000 in. N/A 0.188 in. N/A 500 ºF
G12-538-03.000-0.256 N/A Tempered Borosilicate Glass Disc N/A 3.000 in. N/A 0.250 in. N/A 500 ºF
G12-538-03.000-0.354 N/A Tempered Borosilicate Glass Disc N/A 3.000 in. N/A 0.375 in. N/A 500 ºF
G12-538-03.000-0.512 N/A Tempered Borosilicate Glass Disc N/A 3.000 in. N/A 0.500 in. N/A 500 ºF
G12-538-03.250-0.354 N/A Tempered Borosilicate Glass Disc N/A 3.250 in. N/A 0.375 in. N/A 500 ºF
G12-538-03.375-0.354 N/A Heat Strengthened Borosilicate Glass Disc N/A 3.375 in. N/A 0.375 in. N/A 500 ºF
G12-538-03.500-0.256 N/A Tempered Borosilicate Glass Disc N/A 3.500 in. N/A 0.250 in. N/A 500 ºF
G12-538-03.625-0.630 N/A Tempered Borosilicate Glass Disc N/A 3.625 in. N/A 0.625 in. N/A 500 ºF
G12-538-03.625-0.748 N/A Heat Strengthened Borosilicate Glass Disc N/A 3.625 in. N/A 0.750 in. N/A 500 ºF
G12-538-03.750-0.256 N/A Tempered Borosilicate Glass Disc N/A 3.750 in. N/A 0.250 in. N/A 500 ºF
G12-538-03.750-0.512 N/A Tempered Borosilicate Glass Disc N/A 3.750 in. N/A 0.500 in. N/A 500 ºF
G12-538-03.875-0.630 N/A Heat Strengthened Borosilicate Glass Disc N/A 3.875 in. N/A 0.625 in. N/A 500 ºF
G12-538-04.000-0.197 N/A Heat Strengthened Borosilicate Glass Disc N/A 4.000 in. N/A 0.188 in. N/A 500 ºF
G12-538-04.000-0.256 N/A Tempered Borosilicate Glass Disc N/A 4.000 in. N/A 0.250 in. N/A 500 ºF
G12-538-04.000-0.354 N/A Tempered Borosilicate Glass Disc N/A 4.000 in. N/A 0.375 in. N/A 500 ºF
G12-538-04.000-0.630 N/A Tempered Borosilicate Glass Disc N/A 4.000 in. N/A 0.625 in. N/A 500 ºF
G12-538-04.000-0.748 N/A Heat Strengthened Borosilicate Glass Disc N/A 4.000 in. N/A 0.750 in. N/A 500 ºF
G12-538-04.375-0.256 N/A Tempered Borosilicate Glass Disc N/A 4.375 in. N/A 0.250 in. N/A 500 ºF
G12-538-04.375-0.512 N/A Heat Strengthened Borosilicate Glass Disc N/A 4.375 in. N/A 0.500 in. N/A 500 ºF
G12-538-04.500-0.256 N/A Tempered Borosilicate Glass Disc N/A 4.500 in. N/A 0.250 in. N/A 500 ºF
G12-538-04.875-0.512 N/A Tempered Borosilicate Glass Disc N/A 4.875 in. N/A 0.500 in. N/A 500 ºF
G12-538-04.875-0.748 N/A Heat Strengthened Borosilicate Glass Disc N/A 4.875 in. N/A 0.750 in. N/A 500 ºF
G12-538-05.000-0.197 N/A Tempered Borosilicate Glass Disc N/A 5.000 in. N/A 0.188 in. N/A 500 ºF
G12-538-05.000-0.512 N/A Tempered Borosilicate Glass Disc N/A 5.000 in. N/A 0.500 in. N/A 500 ºF
G12-538-05.000-0.748 N/A Tempered Borosilicate Glass Disc N/A 5.000 in. N/A 0.750 in. N/A 500 ºF
G12-538-05.000-1.000 N/A Tempered Borosilicate Glass Disc N/A 5.000 in. N/A 1.000 in. N/A 500 ºF
G12-538-05.000-1.125 N/A Tempered Borosilicate Glass Disc N/A 5.000 in. N/A 1.125 in. N/A 500 ºF
G12-538-05.000-1.250 N/A Tempered Borosilicate Glass Disc N/A 5.000 in. N/A 1.250 in. N/A 500 ºF
G12-538-05.750-0.748 N/A Tempered Borosilicate Glass Disc N/A 5.750 in. N/A 0.750 in. N/A 500 ºF
G12-538-05.750-1.000 N/A Tempered Borosilicate Glass Disc N/A 5.750 in. N/A 1.000 in. N/A 500 ºF
G12-538-05.750-1.250 N/A Tempered Borosilicate Glass Disc N/A 5.750 in. N/A 1.250 in. N/A 500 ºF
G12-538-06.000-0.630 N/A Tempered Borosilicate Glass Disc N/A 6.000 in. N/A 0.625 in. N/A 500 ºF
G12-538-06.000-0.748 N/A Tempered Borosilicate Glass Disc N/A 6.000 in. N/A 0.750 in. N/A 500 ºF
G12-538-06.000-1.000 N/A Tempered Borosilicate Glass Disc N/A 6.000 in. N/A 1.000 in. N/A 500 ºF
G12-538-06.187-1.000 N/A Tempered Borosilicate Glass Disc N/A 6.813 in. N/A 1.000 in. N/A 500 ºF
G12-538-06.500-0.748 N/A Tempered Borosilicate Glass Disc N/A 6.500 in. N/A 0.750 in. N/A 500 ºF
G12-538-06.625-0.748 N/A Tempered Borosilicate Glass Disc N/A 6.625 in. N/A 0.750 in. N/A 500 ºF
G12-538-06.750-0.354 N/A Tempered Borosilicate Glass Disc N/A 6.750 in. N/A 0.375 in. N/A 500 ºF
G12-538-06.750-0.512 N/A Tempered Borosilicate Glass Disc N/A 6.750 in. N/A 0.500 in. N/A 500 ºF
G12-538-06.750-0.748 N/A Tempered Borosilicate Glass Disc N/A 6.750 in. N/A 0.750 in. N/A 500 ºF
G12-538-06.875-0.748 N/A Heat Strengthened Borosilicate Glass Disc N/A 6.875 in. N/A 0.750 in. N/A 500 ºF
G12-538-07.000-0.256 N/A Tempered Borosilicate Glass Disc N/A 7.000 in. N/A 0.250 in. N/A 500 ºF
G12-538-07.250-0.748 N/A Tempered Borosilicate Glass Disc N/A 7.250 in. N/A 0.750 in. N/A 500 ºF
G12-538-08.000-0.748 N/A Tempered Borosilicate Glass Disc N/A 8.000 in. N/A 0.750 in. N/A 500 ºF
G12-538-08.000-1.250 N/A Tempered Borosilicate Glass Disc N/A 8.000 in. N/A 1.250 in. N/A 500 ºF
G12-538-08.250-0.748 N/A Tempered Borosilicate Glass Disc N/A 8.250 in. N/A 0.750 in. N/A 500 ºF
G12-538-08.375-0.748 N/A Tempered Borosilicate Glass Disc N/A 8.375 in. N/A 0.750 in. N/A 500 ºF
Unit of Measure
1 2