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 5960-01-020-6316
NSN 6150-01-416-2848
NSN 6240-00-858-0389
NSN 5895-01-444-2202
NSN 5945-00-363-9481
NSN 5975-00-903-8280
NSN 6685-00-045-5243
NSN 5835-00-740-0246
NSN 5999-00-333-1150
NSN 6650-01-246-4262
NSN 5985-00-288-4864
NSN 6650-01-437-9557