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 6130-01-115-5331
NSN 6645-01-514-3353
NSN 2925-01-012-6938
NSN 5996-01-270-3679
NSN 6135-01-340-2599
NSN 5835-00-870-7034
NSN 6685-01-495-4385
NSN 6240-01-387-3610
NSN 5960-01-599-9821
NSN 5985-00-597-2966
NSN 6610-01-029-8749
NSN 5965-00-568-5802