VMC Chinese Parts Part number: 1241-SR387-10 Qty. 1 2 3 4 5 6 7 8 9 10 Add to Cart C-Clip - 10mm ID External Retaining Ring - is currently on backorder. You may still purchase now though and we'll ship as soon as more become available. 10mm C-clip Clip details: ID of clip: 10mm (0.39 in) OD of clip: 12.6mm (0.49 in)