Raychem - Te Connectivity Tc-Caps-4001-9.
HEAT SHRINK BOOT, STRAIGHT, 1.6MM, WHT; Boot Configuration:End Cap; I.D. Supplied - Imperial:0.063"; I.D. Supplied - Metric:1.6mm; Shrink Tubing / Boot Colour:White; Total Length - Imperial:0.75"; Total Length - Metric:19.1mm