>> Search results for: DDW131CLASZ90MM NSN Search Results National Stock Number (NSN) Description 6640-00-290-6789, 6640002906789 Cancelled -> Replaced by 6640008921890 6640-00-845-8428 , 6640008458428 WATCH GLASS,LABORATORY 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