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 6220-01-579-6112
NSN 5835-01-442-6079
NSN 5910-01-479-5061
NSN 5965-01-127-0389
NSN 5925-01-495-6382
NSN 5999-01-462-6276
NSN 5975-01-088-7470
NSN 5855-00-149-0766
NSN 6130-00-872-5688
NSN 5935-01-546-7852
NSN 6130-00-905-7182
NSN 6620-01-158-6570