Manufacturer name - floor plate
No other part numbers with same form, fit, and function found.
A brick having a low thermal conductivity and used as a backing for the more dense refractory brick.
NSN 6105-00-268-2878
NSN 2925-00-310-6236
NSN 6620-00-877-3266
NSN 5835-00-055-0953
NSN 5835-00-876-4544
NSN 5996-00-964-2776
NSN 6650-01-512-5843
NSN 6145-01-354-3093
NSN 5855-01-578-8733
NSN 5998-00-103-0459
NSN 6685-01-624-2559
NSN 7035-01-285-7413