National Stock Number:
5640-01-399-7637
Federal Supply Class:
5640
National Item Identification Number:
013997637
Description:
SOUND CONTROLLING FELT
Detail:
A FLEXIBLE OR SEMIRIGID MATERIAL COMPOSED OF ONE OR MORE KINDS OF FIBER WITH AN ADDED BINDER, MANUFACTURED IN FLAT SHEETS OR ROLLS. IT IS DESIGNED TO ENTRAP AND DISSIPATE SOUND ENERGY, AND MUST BE RATED FOR THIS USE.
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