Special Order: KPN500B1/4=KNOB BLK W/POINTER Primary Product Material: Aluminum 5056 Knob Design: Straight Knurl with Bar Pointer Shaft Size: 6.35 mm Shaft Size: .25 in Product Diameter: 12.7 mm Aluminum 5056 Straight Knurl with Bar Pointer 6.35 mm .25" | Switch Knob | Part Number: KPN500B1/4 | Internal Number: 9-1437622-2 | TE Connectivity | ALCOSWITCH