>> Search results for: 4400B2059 NSN Search Results National Stock Number (NSN) Description 4730-00-432-7591, 4730004327591 RESTRICTOR,FLUID FLOW 4730-00-437-7563 , 4730004377563 ORIFICE 4730-00-437-7563, 4730004377563 ORIFICE 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