>> Search results for: 4083973 NSN Search Results National Stock Number (NSN) Description 2840-01-448-6996, 2840014486996 Cancelled -> Replaced by 2840013094145 4820-21-906-0273 , 4820219060273 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