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 up to and including 36 inches (914.4 mm).
Classification: Mixtures and articles of heat-insulating sound-absorbing mineral materials, nesoi
NSN 6135-01-122-4448
NSN 5920-00-233-7366
NSN 5998-01-519-9273
NSN 6105-01-299-0536
NSN 5945-00-893-1622
NSN 6135-01-142-2417
NSN 5835-00-660-4523
NSN 6240-01-447-8088
NSN 5975-01-359-4020
NSN 5996-01-624-3209
NSN 5999-01-398-9050
NSN 5965-01-564-4066