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 5965-01-271-0808
NSN 5925-01-025-9612
NSN 5910-00-344-4431
NSN 5998-01-431-1566
NSN 5996-01-618-7620
NSN 5998-00-539-3761
NSN 6220-01-401-5337
NSN 5985-00-188-8163
NSN 6610-01-293-4837
NSN 5920-01-124-9883
NSN 5945-01-145-1420
NSN 6645-01-529-5690