These discs do not have a "stack ring"
RADIAL product from VISHAY with the model number 564R30GAT68Product details
ECWFE Series product from PANASONIC ELECTRONIC COMPONENTS with the model number ECWFE2W684KProduct details
Converts all Manfrotto 75mm bowl tripods into 60mm bowl
6 x 127 mm Grade 1/4 density Effect Lowers highlights
VISHAY M43P101KB40 Trimmer Potentiometer, 100 ohm, 750 mW, ± 10%, 43P Series, 18 Turns, Through Hole Novoflex LET/PENT These discs do not haveThis is a Trimmer Potentiometer, 100 ohm, 750 mW, 10%, 43P Series, 18 Turns, Through Hole product from VISHAY with the model number M43P101KB40Product details Temperature Coefficient 100ppm C Power Rating 750mW No. of Turns 18Turns Potentiometer Mounting Through Hole Automotive Qualification Standard Resistance Tolerance 10% Product Range 43P Series Track Resistance 100ohm MSL Other details Brand VISHAY Part Number M43P101KB40 Quantity Each Technical