The 54F174DM from National Semiconductor is a TTL D-type flip-flop with 1 element and 6 bits, positive edge triggering, in a 16-CDIP package (0.300", 7.62 mm).
The 54F174LMQB from National Semiconductor is a TTL F/FAST series D-type flip-flop Integrated Circuit with 1 element, 6 bits and positive edge triggering, in a 20-CLCC package.