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 5925-00-283-6528
NSN 5895-00-287-6375
NSN 5835-00-669-7074
NSN 6110-01-593-8570
NSN 6645-00-405-1077
NSN 6645-01-170-0341
NSN 6610-01-535-4230
NSN 6105-00-912-7345
NSN 5835-00-885-6030
NSN 5999-01-294-7667
NSN 4140-01-423-0731
NSN 5960-01-027-7252