|
|
|
National Stock Number:
5640-00-314-5972
Federal Supply Class:
5640
National Item Identification Number:
003145972
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:
| 755A | 03938 | ARMSTRONG WORLD INDUSTRIES INC | | 755A | 4F186 | ARMSTRONG WORLD INDUSTRIES INC RESEARCH AND DEVELOPMENT CENTER | | SSS118 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
|
|
|
|