>> Search results for: 3W39899T NSN Search Results National Stock Number (NSN) Description 4820-00-464-4223, 4820004644223 Cancelled -> Replaced by 4310005886749 4820-01-308-5206 , 4820013085206 VALVE,SAFETY RELIEF 4820-01-197-7952, 4820011977952 VALVE,SAFETY RELIEF 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