FACTBOX-Apple's iPhone shipments seen sagging under China disruptions

(Adds J.P.Morgan) Dec 20 (Reuters) - Apple Inc warned in November that worker unrest at the world's biggest iPhone factory in China would impact shipments of higher-end models of the device in the holiday quarter. Some Wall Street analysts have started estimating a hit from the disruptions, which have weighed on shares of the world's most valuable company. Here are their predictions: Brokerage Estimate Wedbush Securities Shortages to result in 5% to 10% fewer units sold in the quarter; Says shutdowns to cost Apple about $1 billion a week in lost iPhone sales Susquehanna Sees a 10 million hit to shipments, with total shipments of 70 million iPhones TF International Disruptions to impact iPhone shipments Securities by about 20% to between 70 million and 75 million units CFRA Research Sees as much as 5% to 10% downside to its original iPhone shipment estimate of 82 million units KGI Securities Lost iPhone production to be about 10 mln units, or about 12% lower iPhone shipments compared with a year ago Evercore ISI Shutdowns to have impact of 5 million to 8 million units Piper Sandler Cuts its estimate for iPhone sales to 74 million for the Dec-quarter, as it sees a hit of 9 million units. Expects an impact of $8 billion in the quarter. Morgan Stanley Lowers its estimates for iPhone shipment for Dec-quarter by 3 million to 75.5 million units. J.P.Morgan Lowers its estimate for iPhone volume in the Dec-quarter by 4 million to about 70 million units. However, raised its March-quarter forecast for shipments to about 63 million units from prior estimate of about 61 million. (Compiled by Akash Sriram, Vansh Agarwal and Chavi Mehta in Bengaluru; Edited by Anil D'Silva, Vinay Dwivedi and Shounak Dasgupta)