Acctually Yes you can.. I forgot.. Or am i thinking about something else.. ****..
Wasnt there a Thread by XRusty named Help Center.. I found it there i think..
1.If u mean by weapon/equipment.. change the ident for that item to 4.. it will make it undestructable.
2.If u mean by items/stackable , use another id that doesnt use amount/amount limit as durability