Temperature indicator plate (NSN 6685-01-015-5975)
General Description
Mylar, 0.009 in. Min 0.014 in. Max thk, 1.750 in. Lg, 0.750 in. W, markings white on red background, clear windows turn black irreversibly when exposed to a critical temperature, first window 65 degrees c, second 71 degrees c, third 76 degrees c, fourth 82 degrees c, self-adhesive with protective backing