>> Search results for: 1221AU1 NSN Search Results National Stock Number (NSN) Description 6685-01-440-3316, 6685014403316 Cancelled -> Replaced by 6110014755607 6110-01-475-5607 , 6110014755607 AMP,SIGNAL CONDITIO 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