>> Search results for: 688726 NSN Search Results National Stock Number (NSN) Description 5998-00-856-1953, 5998008561953 CIRCUIT CARD ASSEMBLY 6640-00-857-6877 , 6640008576877 Cancelled -> Replaced by 6640005580650 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