5K Ohm square Trimpot finger adjustable trimmer 3386F-1-502T by Bourns. Bourns series 3386 cermet potentiometer, track resistance 5K Ohms Linear +/- 10% 0.5Watt Download Bourns 3386 series datasheet : Status: NOS (New Old Stock) ex RS Components : rebranded and marked as RS 186-952 RoHS compliant: no