Manufacturer Part Number: 9001SK40|Switch Accessory Type|Ring NutFor Use With|Harmony 9001K/SK/KX 30 mm Pushbuttons; SKR3 Pushbuttons; SKRU1 Pushbuttons; SKRU10 Pushbuttons; SKRU2 Pushbuttons; SKRU3 Pushbuttons; SKRU4 Pushbuttons; SKRU5 PushbuttonsIncludes|Size|Pushbutton Type|Pushbutton Shape|Color|Operator Illumination|Material|Aluminum; ZincLamp Type|PSC Code|UNSPSC Code|