>> Search results for: RT551A NSN Search Results National Stock Number (NSN) Description 5820-01-066-0991, 5820010660991 Cancelled -> Replaced by 5820014571583 5820-01-457-1578 , 5820014571578 RECEIVER-TRANSMITTER SET,RADIO 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