Product Information Material: Nylon/Nickel-Plated Brass Seal: Buna-N D seal Working Pressure: 290 PSI at ambient temperature Select a Product Part NumberMale ThreadMale Thread SizeTube OD 31095618NPT3/8"1/4" 31095614NPT1/4"1/4" 31090818NPT3/8"5/16" 31090414NPT1/4"5/32" 31096222NPT1/2"1/2" 31095320Straight10-321/8" 31090411NPT1/8"5/32" 31095620Straight10-321/4" 31090420Straight10-325/32" 31096014NPT1/4"3/8" 31095611NPT1/8"1/4" 31095308NPT1/16"1/8" 31095311NPT1/8"1/8" 31095314NPT1/4"1/8" 31096214NPT1/4"1/2" 31096018NPT3/8"3/8" 31096011NPT1/8"3/8" 31090811NPT1/8"5/16" 31096022NPT1/2"3/8" 31090814NPT1/4"5/16" 31096218NPT3/8"1/2"