You didn't say if you needed any ends on it or not.
Give this a try. it's $5 or best offer with free shipping.
http://www.ebay.com/itm/NEW-4-ft-Coaxial-RG316-Cable-M17-152-TNC-Male-Connectors-Free-Shipping-/330867409980?pt=US_Radio_Comm_Coaxial_Cables_Connectors&hash=item4d093c043c