4820-01-493-8216 VALVE,REGULATING,TEMPERATURE Index 4320-01-493-8218 SEAL ASSEMBLY,SHAFT,SPRING LOADE

National Stock Number:
5640-01-493-8217

Federal Supply Class:
5640

National Item Identification Number:
014938217

Description:
SOUND CONTROLLING PANEL

Detail:
CONSISTS OF A RIGID, BOX SHAPED OUTER PANEL, SOUND CONTROLLING BATT, SOUND CONTROLLING BOARD AND/OR SOUND CONTROLLING BLOCK. 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.


Manufacturer Information:
77C959827P00203538LOCKHEED MARTIN CORPORATION


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