Mil-s-16974,grade 3140 mil spec single material response overall
Mil-s-16974,grade 1023w mil spec single material response overall
Mil-s-16974 mil spec single material response overall
Qq-s-764,cond a fed spec 1st material response overall or mil-s-16974,grade 4130h mil spec 2nd material response overall
Fed std 66,comp 4130 fed std single material response overall or mil-s-16974,grade 4130 mil spec single material response overall