A boxcar of the kind the Nazis used to transport people like cattle. The barracks where they slept jammed into narrow bunks. The posts from fences that caged them in. A canister once filled with the poison gas pellets that sealed their fate.

With these artifacts and 700 others, the Museum of Jewish Heritage is set to bring Auschwitz to New York this spring, a major undertaking that will mean ripping out the museum’s permanent collection for an exhibition designed to provide a vivid sense of the Nazi death camp where 1.1 million people were killed, a million of them Jews.

The exhibition, titled “Auschwitz. Not Long Ago. Not Far Away.,” is aimed at refocusing the heritage museum into one that will delve more deeply into the Holocaust at a time when Jewish leaders say anti-Semitism and other hatreds are growing and the memory of — and witnesses to — what happened to six million Jews and other victimized minorities three-quarters of a century ago are fading away.