Part Details | SOUND CONTROLLING BOARD
5640-01-383-4979 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).
Alternate Parts: DODI24688 TY2CL2, DOD-I-24688 TY2CL2, DODI24688, DOD-I-24688, 5640-01-383-4979, 01-383-4979, 5640013834979, 013834979
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 56 | NOV 25, 1993 | 01-383-4979 | 20228 ( SOUND CONTROLLING BOARD ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5640-01-383-4979
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| DOD-I-24688 TY2CL2 | 80244 | GENERAL SERVICES ADMINISTRATIONFEDERAL SUPPLY SERVICE |
| DOD-I-24688 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 5640-01-383-4979
| Characteristic | Specifications |
|---|---|
| OVERALL THICKNESS | 1.500 INCHES NOMINAL |
| COVERAGE WIDTH | 24.000 INCHES NOMINAL |
| OVERALL WIDTH | 24.000 INCHES NOMINAL |
| COVERAGE LENGTH | 48.000 INCHES NOMINAL |
| OVERALL LENGTH | 48.000 INCHES NOMINAL |
| NOISE REDUCTION COEFFICIENT RATING | 0.25 MINIMUM AND 0.90 MAXIMUM |
| EXPOSED FACE SURFACE TYPE | FELTED FIBER AND PERFORATED |
| FLAMEPROOF FEATURE | INCLUDED |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 2 CLASS |