>> Search results for: XX6504708 NSN Search Results National Stock Number (NSN) Description 6640-00-256-3351, 6640002563351 SUPPORT BASE,FILTER 6640-99-225-3008 , 6640992253008 HOLDER 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