The part is a cable clamp from Harting designed for 9 to 37 pole D-Sub metal hood connectors. It accommodates cable diameters ranging from 7mm to 10mm and operates within an ambient temperature range of -20°C to +90°C.

You can click on the BUY or RFQ button to purchase 61030000044 from an authorized Harting distributor.
You can visit the Harting website for support.
Harting