ABC - Crusher run - Fine to #57 size stone
# 4 - 3/4-2 inch - think railroad ballast
#5 – Sizes are from 1″ down to fine particles. For road and paver base.
#57 – Sizes of about 3/4″. For concrete and asphalt mix, driveways, landscaping and French drains.
#67 – Sizes from 3/4″ down to fine particles. For fill, road and slab base.
#78m - 3/8" to fine particles - what they use in bagged concrete
Screenings are exactly what they say. They are whats screened off when they classify the larger stuff. Some are washed some are not. Classified is screedned to remove a % of the dust
Rip Rap
Surge - 4-12" stones- only run through primary crusher
Class A- 2-6" stones
Class B- 5-12"
Class 1- 5-17"
Class 2 - 9-23"
Crusher run is great for a driveway, it is dusty but will pack in well b/c of all the fine particles. If you are doing a driveway though I would look for someone that sells crushed concrete. It's usually cheaper and once it gets wet and packed the cement dust particles will lock it up making it almost as hard as concrete again and less dusty. Heres a link to help visualize the sizes.
http://www.bluemaxmaterials.com/sand_aggregates.htm
I've never heard of "Nash fill" it may be a waste product from the quarry in question. It's probably full of dirt, rock, and debris from where they remove the overburden to get to clean stone and best used to fill a big hole.
Hope this is what you were looking for.