2a thread class right-hand 2.500" overall length 18 thread quantity per inch inorder to complete the connector assembly, the user must obtain/provide the backshell. standard versions may be ordered as nsn 5935-01-183-6491, p/n M85049/52-1-20w for the straight style or nsn 5935-01-186-5610, p/n M85049/51-1-20wfor the right angle style unef thread series