>> Search results for: A5B020 NSN Search Results National Stock Number (NSN) Description 4820-01-552-1253, 4820015521253 VALVE,SAFETY RELIEF 4820-99-660-9752 , 4820996609752 VALVE,SAFETY RELIEF 4820-99-613-9396, 4820996139396 VALVE,SAFETY-RELIEF 4820-99-333-7857 , 4820993337857 VALVE,RELIEF,PRESSU 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