Mil-s-6721 mil spec all material responses or mil-s-5059 mil spec all material responses or mil-s-7720 mil spec all material responses
Mil-s-6721 mil spec 1st material response overall or qq-s-763,cond a fed spec 1st material response overall and mil-s-6721 mil spec 2nd material response overall or qq-s-763,cond a fed spec 2nd material response overall