Anderson Metals 3/4" x 3-1/2" Close Brass Nipple is a high-quality brass fitting designed to meet rigorous industry standards. This product complies with Alloy No. C23000 per ASTM B43, ANSI/ASME B1.20.1, WW-N-351 Federal Specifications, and MS51846 Military standard. It also adheres to California AB 1953, Vermont SB152, and Directive 2002/95/EC-ROHS, ensuring safety, reliability, and environmental compliance. for plumbing and industrial applications, this close brass nipple durability and dependable performance. Model Number: 38300-1235