The 100118W-MIL2 is a single-function, 19-input gate from the 100K series, supplied in bulk packaging. It is a combinatorial logic device meant for board-level signal gating where a large number of inputs need to be combined into one output — think address decoding, wide-input AND/OR trees, or fault-summary logic in industrial control panels.
Bulk packaging means the parts ship loose in a bag or tube, not on tape-and-reel. For a through-hole device this is standard for manual insertion or low-volume panel assembly. If your line expects reel-fed pick-and-place, you will need to verify the part's lead form — bulk typically suits prototype runs, repair stock, or builds where hand-stuffing is the norm.