indispensable

essential condition

small teapot

Susanoo-no-Mikoto (deity, younger brother to Amaterasu)

essential fatty acid

spout of a teapot

required subject

gosu porcelain

indispensable case

Sue ware (type of unglazed pottery made from the middle of the Kofun era through the Heian era)

essential amino acid

ridged whale meat used to make whale "bacon"

mandatory attribute

required entry (e.g. in online forms)

single-stringed Japanese zither

moo shu pork

absolutely necessary

Mount Sumeru (believed to be the center of the Buddhist world)

beard

dais for a Buddhist image

moment

Dragon's beard candy