>> Search results for: U5257 NSN Search Results National Stock Number (NSN) Description 4920-00-864-6645, 4920008646645 SPOOL,INLET 5930-00-034-5057 , 5930000345057 SWITCH,PRESSURE 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