I'm trying to add the jetpack from the JetPack plugin so that it spawns in heli and bradley crates. The code for the jetpack is: 

"Item": {
"Shortname": "burlap.gloves.new",
"Skin": 2632956407,
"Name": "JetPack"
},

I'm not exactly sure how to add this to the loot tables though because it needs that skin number with it or else it just spawns regular burlap gloves.  Sorry for bad english, but can anyone help me?