8903 LED Spacer by Keystone. Material: black nylon UL Rated 94V-0 Dims: (0.18") 4.6mm tall x 6.5mm Dia. For use with T-1 (3mm) and T-1 3/4 (5mm) , 2, 3 or 4 leg LED's Download Keystone 8903 datasheet: Status: NOS (New Old Stock) RoHS compliant: YES