Are the replacement glass for S4, S5, And S6 the same part?

Are the replacement glass for S4, S5, And S6 the same part?

Iwatch series 4, 5 and 6 have the same sizes 40 & 44 mm . Does that mean one part fits all watches . Ie. the glass on a series 4 ,40 mm is the same on a series 5 ,40 mm and 6 ,40 mm?