>> Search results for: AC66684 NSN Search Results National Stock Number (NSN) Description 2590-21-878-8089, 2590218788089 PRINTED CIRCUIT BOA 5998-99-902-1648 , 5998999021648 CIRCUIT CARD ASSEMB 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