Brass Part A Male Adapter x Female NPT Applications Chemicals/Petroleum Construction Brass alloy, specially designed for high tensile strength and rigidity. Specifications Size 2 Inches Weight (per Piece) 1.040 lbs Standard Carton 20 pcs. Application / Material Conveyed Chemicals/Petroleum Construction Handles Forged Brass Slot Pins Type 304 stainless steel Pull Rings Stainless Steel Gaskets Buna-N Safety Clips Carbon Steel Operating Pressure 250 PSI Note All sizes except 5" and 8" are made to comply with MIL Spec 27487. Sizes 5" & 8" comply with ASTM Specifications. 1/2" & 1/2" are not specified under MIL Specs.