Mil-s-5059,cond 1/4 hard mil spec 1st material response overall or mil-s-5059,cond full hard mil spec 1st material response overall or mil-s-5059,cond 1/4 hard,finish 2b mil spec 2nd material response overall or astm a582 assn std 3rd material response overall
Qq-b-766 fed spec single material response or mil-s-5059 mil spec single material response
Qq-s-766 fed spec single material response or mil-s-5059 mil spec single material response
Mil-s-5059 mil spec single material response primary washer