Operation Nickle-Grass, the US transit by air of material to Israel had a small effect on the war itself. After the war the US of course helped greatly in re-fitting the IDF. The Arabs themselves recieved similar help from the USSR, naturally.
My point was that Israeli hardware was not better, and usually worse than Arab hardware. Lets check this:
Item-Israel|Arabs=Which is better?
Rifle-FN FAL|AK-47=Arabs have advantage because in the desert the AK is far more reliable.
APC-M113 and M3 Halftrack| BTR-50 and BTR 152= A draw, more or less
Tank- M48/Centurion/Sherman M51| T-62/T-55= Slight advantage to arabs, having Active IR which Israelis did not and the T-62 being vastly superior to the Centurions. Shermans were a seriously old tank by than as well.
Aircraft- Way too many for this chart. Israel defintly leads this with the F4, Mirage and A-4 fighting against Mig-21 and Su-7 mostly. But Russian SA-3 and SA-6 batteries prevented the IAF from assisting the ground forces and caused horrible casualties untill these batteries were physically run down by tanks and infantry.