Part NumberSize (inches)ABSTP File

28AMP-.50

1/2 1.500 5.500 STP

28AMP-.75

3/4 1.500 5.500 STP

28AMP-1

1 1.500 5.500 STP

28AMP-1.5

1 1/2 1.687 6.688 STP

28AMP-2

2 2.125 7.625 STP

28AMP-2.5

2 1/2 2.000 9.000 STP

28AMP-3

3 2.375 9.375 STP

28AMP-4

4 2.687 11.375 STP

28AMP-6

6 4.375 13.250 STP