>> Search results for: 5105520 NSN Search Results National Stock Number (NSN) Description 4820-01-504-4762, 4820015044762 VALVE RELIEF 2990-12-183-1887 , 2990121831887 PLATTE 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