Mil-s-6721 mil spec 1st material response overall or mil-s-5059 mil spec 2nd material response overall or mil-s-5059 mil spec 3rd material response overall or mil-s-5059 mil spec 4th material response overall or mil-s-5059 mil spec 5th material response overall
Mil-s-6721 type 321 or 347 mil spec 1st material response overall or qq-s-763 class 321 or 347 fed spec 2nd material response overall