>> Search results for: BS20D4 NSN Search Results National Stock Number (NSN) Description 4730-00-756-1844, 4730007561844 Cancelled -> Replaced by 4730005077291 4730-01-328-6787 , 4730013286787 COUPLING,HOSE 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