Fallout: New Vegas Apparel

Legend

 * Name: The name of the gear in question; usually what appears on your Pip-Boy.
 * DT: This is the value of the Damage Threshold of the gear. It is the amount of damage you can expect the armor to absorb before the user suffers hit point loss.
 * Weight: How heavy the item is, adding to your Carry weight.
 * Value: How much you can expect to sell the gear for, assuming the merchant is buying your items at 100% of their value.
 * Health: This is the hit points of the gear when in full condition. It shows how tough it is.
 * Quest: Whether the gear is a crucial part of a main or side quest.
 * Limit: Whether the gear is in limited supply in the game.
 * Faction: What faction's disguise the gear provides.
 * Power Armor: Whether or not the gear is Power armor; and therefore whether it requires the Power Armor Training Perk to equip. Only applies to medium armor, heavy armor and helmets.

Heavy
lesmants power armour

Helmets

 * The Raider Blastmaster Helmet has no set location in Fallout: New Vegas, it may not appear at all but is included in some leveled loot tables.Known to spawn randomley on the dead raider outside of novac. (xbox 360)

Bugs
This occurs more likely when you acquire the Jury Rigging perk. When you equip a faction armor and use it to repair another armor. The faction armor disappears from your body but the game will not register you as having unequipped the armor. This means you are stuck with the particular faction until you find another piece of the same faction's armor, equip and unequip it.