Rashi on Numbers 4:7/רש"י על במדבר ד׳:ז׳

1קערת וכפת וקשות ומנקיות — I have already described these in the chapter dealing with the work of the Tabernacle (Exodus XXV).

2הנסך means, “covering”, — having the same meaning as מסך, the screen, — as it is written, (Exodus 25:29) “the covers by which they shall be covered (יסך)” (cf. Rashi on that verse and the Note thereon).