Mil-s-5826(aisi 4140) government std/spec 1st material response or mil-s-5000(aisi 4340) government std/spec 2nd material response or mil-s-6049(aisi 8740) government std/spec 3rd material response or mil-s-8503(aisi 6150) government std/spec 4th material response overall
Mil-s-5826(aisi 4140) government std/spec 1st material response or mil-s-5000(aisi 4340) government std/spec 2nd material response or mil-s-6049(aisi 8740) government std/spec 3rd material response or mil-s-8503(aisi 6150) government std/spec 4th material response overall
Mil-s-5826(aisi 4140) government std/spec 1st material response or mil-s-5000(aisi 4340) government std/spec 2nd material response or mil-s-6049(aisi 8740) government std/spec 3rd material response or mil-s-8503(aisi 6150) government std/spec 4th material response overall
Mil-s-5826(aisi 4140) government std/spec 1st material response or mil-s-5000(aisi 4340) government std/spec 2nd material response or mil-s-6049(aisi 8740) government std/spec 3rd material response or mil-s-8503(aisi 6150) government std/spec 4th material response overall
Mil-s-5826(aisi 4140) government std/spec 1st material response or mil-s-5000(aisi 4340) government std/spec 2nd material response or mil-s-6049(aisi 8740) government std/spec 3rd material response or mil-s-8503(aisi 6150) government std/spec 4th material response overall
Mil-s-5826 mil spec 1st material response or ams6416 assn std 2nd material response or mil-s-6049 mil spec 3rd material response overall