Lightweight Nylon Poncho Sunday January 10th, 2016 admin Raincoat & Poncho, Post Vietnam War 7,176 views Shown one circa 1981. Stock Number Reference: Poncho, Wet Weather, Coated Nylon, OG-207 NSN: 8405-00-935-3257 Assign Date: 1967-06-13 post_vncampingponchowet_weather