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 5985-01-255-3176
NSN 5930-01-038-0841
NSN 7035-00-585-2113
NSN 5985-01-602-9023
NSN 6220-01-024-1106
NSN 5975-01-486-7784
NSN 6105-01-126-9008
NSN 5960-01-654-4353
NSN 6135-01-351-2690
NSN 5998-00-299-1475
NSN 5998-00-470-5211
NSN 6130-01-167-8911