Astm a615 grade 60 or a996 grade 50, bar designator no. 4
Classification: Concrete reinforcing bars and rods, iron or nonalloy steel, not further worked than hot-rolled or hot-drawn, including those twisted after rolling
NSN 5950-01-268-1573
NSN 5990-01-517-1909
NSN 5930-00-214-0431
NSN 7035-01-145-5059
NSN 4140-00-545-3422
NSN 4140-01-179-0797
NSN 5925-01-417-6553
NSN 6105-01-451-4327
NSN 6220-00-133-5170
NSN 6135-01-010-0891
NSN 6240-00-890-4776
NSN 6110-01-555-3802