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 5965-01-164-0561
NSN 6610-01-406-4985
NSN 7035-00-763-6180
NSN 5998-01-273-5282
NSN 5990-00-557-7443
NSN 6645-01-216-8682
NSN 6105-01-627-2198
NSN 7035-00-756-4374
NSN 5855-01-131-9336
NSN 5999-00-932-3690
NSN 5965-00-822-8549
NSN 5999-01-128-6931