NTN SNR: KM6 Lock Nut Used primarily to help lock and locate bearings on shafts or adaptor sleeves. They have evenly spaced slots on the circumference for use with the SNR range of hook spanners. MPN: KM6 EAN: 3413520529635 KM6 Lock Nut Attributes: Appropriate Locking Washer: MB6 Inside Diameter: 30mm MFR Part No.: KM6 Thread Size: M30 x 1.5 Width: 7mm