National Item Identification Number
00-068-6637
000686637
5640-00-068-6637
5640000686637
National Stock Number
Item Name
SOUND CONTROLLING BOARD
Federal Supply Class
5640
Description
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).
Commercial and Government Entity Code (Supplier Data)
77272
Reference Numbers (Part Numbers)
114ES023-115
Required Categories
III END ITEM IDENTIFICATION
Required Description
CH-47, ROTARY WING AIRCRAFT