>> Search results for: WHATMAN3 NSN Search Results National Stock Number (NSN) Description 6640-00-844-9017, 6640008449017 PAPER,FILTER 6640-00-844-9018 , 6640008449018 PAPER,FILTER 6640-00-844-9019, 6640008449019 PAPER,FILTER 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