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 6610-00-450-2575
NSN 5930-01-258-6193
NSN 5990-00-003-4464
NSN 7035-01-307-5366
NSN 5996-01-448-6814
NSN 6150-01-427-3759
NSN 6685-00-578-0974
NSN 6645-00-244-0359
NSN 5985-01-550-9852
NSN 5905-00-156-0617
NSN 5950-01-490-5659
NSN 6135-00-686-4777