WASHINGTON, Oct 27 (Reuters) - New orders for U.S.-made capital goods increased more than expected in September, but stretched supply chains likely slowed the pace of growth in business spending on equipment and hampered the overall economy in the third quarter. Orders for non-defense capital goods excluding aircraft, a closely watched proxy for business spending plans, rose 0.8% last month, the Commerce Department said on Wednesday. Data for August was revised lower to show these so-called core capital goods orders rising 0.5% instead of 0.6% as previously reported. Economists polled by Reuters had forecast core capital goods orders gaining 0.5%. (Reporting By Lucia Mutikani; Editing by Alison Williams)