2a thread class right-hand 1.420" overall length in order to complete the connector assembly, the user must obtain/provide the backshell, standard versions may be ordered as nsn 5935-01-177-9556, p/n M85049/52-1-18 for the straight style, or nsn 5935-01-174-3671, p/n M85949/51-1-18 for the right angle style unef thread series