>> Search results for: D4A16032 NSN Search Results National Stock Number (NSN) Description 4210-00-728-0675, 4210007280675 HEAD,SPRINKLER,FIRE PROTECTION 4210-01-289-9726 , 4210012899726 HEAD,SPRINKLER,FIRE PROTECTION 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