A light, rigid item composed of one or more kinds of granule and/or fiber with binder added, compressed to the desired density, and dried. It may be with or without surface coating and/or perforations or voids to be exposed to the noise area to entrap and dissipate sound energy, and is rated for this use. It is provided in lengths greater than 36 inches (914.4 mm).
Classification: Mixtures and articles of heat-insulating sound-absorbing mineral materials, nesoi
NSN 5935-00-952-5514
NSN 5835-01-190-5192
NSN 5999-01-011-5343
NSN 5855-00-832-9341
NSN 6110-01-045-3256
NSN 7035-01-602-9350
NSN 5920-01-364-4098
NSN 6110-00-316-3484
NSN 5920-01-418-1821
NSN 5998-01-352-5722
NSN 5996-01-633-7979
NSN 6150-00-189-0292