Product Information Material: Nickel-Plated Brass Seal: FKM Vacuum Capability: 28" HG Select a Product Part NumberMale ThreadMale Thread SizeTube OD 36750411NPT1/8"5/32" 36755614NPT1/4"1/4" 36015620UNF10-321/4" 36756222NPT1/2"1/2" 36756014UNF1/4"3/8" 36756022UNF1/2"3/8" 36756018UNF3/8"3/8" 36756011UNF1/8"3/8" 36750414NPT1/4"5/32" 36756218NPT3/8"1/2" 36755611NPT1/8"1/4" 36755618NPT3/8"1/4" 36010420UNF10-325/32"