SAA/SAX: 88x125 in base with a contour (full width of B727 fuselage and countoured to match)
AYY/AYX: 88x62.5 in base, essentially half a SAA container
AMJ: 96x125 in base, 96" tall (i think, been a while) with one top corner contoured
AKE/AVE: stadard LD
-3 belley containers
AWX: specialty haz at container to fit in the first position of B727, roughly half the footprint of a SAA
Along with standard "cookie sheet" pallets at 96x125" and 88x125" bases and the occasional 20-foot pallet.
As far which aircraft uses what, B727 uses only SAA/AYY containers (the last letter X symbolizes a specialty hazmat container)
A300/A310 can use all cans (except AWX), and numbers vary by load configuration. DC-10/MD
-11 is the same.