5640-01-522-6538 SOUND CONTROLLING BOARD Index 5310-01-522-6540 WASHER,FLAT

National Stock Number:
5640-01-522-6539

Federal Supply Class:
5640

National Item Identification Number:
015226539

Description:
SOUND CONTROLLING BOARD

Detail:
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).


Manufacturer Information:
760548-605869RAYTHEON COMPANY


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