|
|
|
National Stock Number:
5640-01-183-3904
Federal Supply Class:
5640
National Item Identification Number:
011833904
Description:
SOUND CONTROLLING BLOCK
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 UP TO AND INCLUDING 36 INCHES (914.4 MM).
|
Manufacturer Information:
| 925 WHITE | 4F186 | ARMSTRONG WORLD INDUSTRIES INC RESEARCH AND DEVELOPMENT CENTER | | 925WHITE | 03938 | ARMSTRONG WORLD INDUSTRIES INC | | ASTM-E1264 | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS | | SS-S-118 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
|
|
|
|