Pololu - T1-3/4 (5mm) RGB LED with Diffused Lens (5-pack)
5mm Red Color Light Emitting Diodes Round Top Led Light Diode - Buy 5mm Red Color Led Light Diode,Light Emitting Diodes Round Top,Diodes Round Top Led Light Diode Product on Alibaba.com
Solved 1. The following diagram shows the LED from the parts | Chegg.com