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 5930-01-267-9397
NSN 6620-01-044-3371
NSN 5965-00-568-5802
NSN 6150-01-644-2173
NSN 4140-00-358-9965
NSN 5999-01-104-4056
NSN 6150-01-461-2308
NSN 5950-01-417-2136
NSN 6110-00-891-4377
NSN 5905-01-218-5967
NSN 6320-01-036-2598
NSN 5935-00-515-6967