>> Search results for: SSS00118 NSN Search Results National Stock Number (NSN) Description 5640-00-527-8782, 5640005278782 SOUND CONTROLLING BLOCK 5640-00-868-6139 , 5640008686139 SOUND CONTROLLING BOARD 5640-00-990-1527, 5640009901527 SOUND CONTROLLING BLOCK 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information