One day I was bored and decided to make up a spreadsheet of the stats of all the crew equipment in the game.
I haven't added flight suits, as all of them that I have come across so far have the same stats (+1 sea and land survival). If the number in a box is positive (e.g. 5) it means that a stat is increased (e.g.+5). The stats are listed without the influence of any other items or perks, e.g. character stats. When looking at the chart, a blank square means that that particular variable (e.g. armour, survival) is unaffected.