WASHER; Internal Diameter:4.826mm; Exter; WASHER; Internal Diameter:4.826mm; External Diameter:19.05mm; Fastener Material:Metal; Accessory Type:Metal Washer; For Use With:200, 210 and 270 Series Resistors (100WATT); Inner Diameter:0.19"; Material:Metal; Outer Diameter:0.563"