MIL-B-16305B (NOTICE 1), MILITARY SPECIFICATION: BRICK, REFRACTORY, INSULATING (25 JUL 1989)

MIL-B-16305B (NOTICE 1), MILITARY SPECIFICATION: BRICK, REFRACTORY, INSULATING (25 JUL 1989)., MIL-B-16305B, dated 8 April 1964, has been reviewed and determined to be valid for use in acquisition.