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 5975-01-521-3635
NSN 6240-01-271-6230
NSN 4140-01-413-0214
NSN 5920-01-328-3801
NSN 6685-01-207-1412
NSN 5950-00-246-6227
NSN 6130-01-133-0848
NSN 6685-01-340-1970
NSN 6685-01-364-8552
NSN 5920-00-632-1308
NSN 5920-00-987-1605
NSN 5910-01-623-6082