TABLE 703.4 STANDARD SIZES OF COARSE AGGREGATES AASHTO M 43
Amounts finer than each laboratory Sieve (square openings), percentage by weight
Product
Name
Nominal Size
Square Openings
100mm
4″
90mm
3 1/2″
75mm
3″
63mm
2 1/2″
50mm
2″
37.5mm
1 1/2″
25mm
1″
19mm
3/4″
12.5mm
1/2″
9.5mm
3/8″
4.75mm
No.4
2.36mm
No.8
1.18mm
No.16
600 µm
No.30
300 µm
No.50
150 µm
No.100
75 µm
No.200
#57 25.0 mm -- 4.75mm
1" -- No. 4
100 95-100 25-60 0-10 0-5 0-2
#67 19.0mm -- 4.75mm
3/4" -- No.4
100 90-100 20-55 0-10 0-5 0-2
#8 9.5mm -- 2.36mm
3/8" -- No.8
100 85-100 10-30 0-10 0-5 0-2
#10 4.75mm -- 0mm
No.4 -- 0
100 85-100 10-30

This is an excerpt of the official AASHTO Gradations page. The numbers shown are representative of percentages of a sample of stone which will pass through an opening the size of which is defined in the above row.