A brick manufactured essentially of temperature stable mineral aggregates, formed by pressure into a special shape. It is suitable for constructing industrial and boiler furnaces. Resistance to temperature is the prime characteristic, but resistance to one or more of the destructive actions of spalling, abrasion, slag attack, or load is usually required. Excludes brick, insulating, high temperature.
Classification: Refractory bricks containing more than 50 percent of silica or of a mixture or compound of silica and alumina, except alumina bricks
NSN 6240-00-496-8974
NSN 5975-00-422-1301
NSN 5999-00-681-6436
NSN 5985-01-456-0357
NSN 5996-01-388-4412
NSN 6620-00-052-3277
NSN 6220-00-954-4897
NSN 4140-01-195-3508
NSN 5960-01-035-3901
NSN 5985-01-021-3592
NSN 5990-01-419-0661
NSN 6135-00-334-4500