Sony Xpreia acro S Working Instructions page 82

Pre-Test Preparations
Sealing adhesive is used to seal the secondary microphone
hole, part number is 1267-9004.
Seal the secondary microphone hole with sealing adhesive.
Pillar for WRT 23mm, part number is 1264-8565.
Use the 23mm Pillar (1264-8565: Pillar for WRT 23mm)
for LT26w instead of the original 25mm Pilliar.
Vacuum Cup 7mm Silicone, part number is 1266-4397.
Use the Vacuum Cup 7mm Silicone (1266-4397: Vacuum
Cup 7mm Silicone) for LT26w instead of the original
Vacuum Cup 9mm Silicone.
1267-1077 Rev 2

Sony Mobile Communications AB – Company Internal
Test Instructions (mech)
6(32)