Merit Brass NIPBR34-312 Pipe Nipple 3/4 Inch X 3-1/2 Inch Mnpt Sch 40 Std Seamless Brass

Product Description

The MERIT BRASS NIPBR34-312 is a seamless brass pipe nipple designed for reliable, leak-free threaded connections in plumbing, HVAC, and industrial piping systems. This nipple measures 3/4 inch in nominal pipe size and 3-1/2 inches in overall length. It features male NPT (MNPT) threads on both ends and is rated to Schedule 40 standard wall thickness. Brass pipe nipples are a staple fitting for plumbers, pipefitters, and mechanical contractors who need durable, corrosion-resistant connections in water supply, gas distribution, steam, and hydronic heating systems. Brass is widely chosen for these applications because it resists dezincification, handles moderate heat and pressure, and forms tight, dependable thread seals when used with appropriate thread sealant or PTFE tape. The seamless construction of this nipple means there is no weld seam that could weaken the fitting under pressure or thermal cycling. That matters in close-quarter installations where fittings are under constant stress. Schedule 40 wall thickness gives this nipple the pressure rating most residential and light commercial plumbing and HVAC jobs require. The 3/4 inch size is one of the most common nominal pipe sizes found in branch lines, boiler connections, water heater supply lines, and gas appliance drops. Domestic manufacturing ensures the fitting meets applicable quality and material standards expected by inspectors and project engineers. This nipple connects directly to any standard 3/4 inch MNPT female threaded fitting, valve, or manifold. Plumbers, HVAC technicians, and maintenance professionals keep brass nipples like this on hand for repairs, new installations, and system modifications across commercial and residential projects.

• 3/4 inch nominal pipe size with 3-1/2 inch overall length for close nipple and short run applications
• Male NPT threads on both ends for direct connection to standard female NPT fittings, valves, and couplings
• Seamless brass construction rated Schedule 40 standard wall for corrosion resistance and pressure durability

Product Highlights

The MERIT BRASS NIPBR34-312 delivers a domestically manufactured, seamless brass Schedule 40 pipe nipple in a 3/4 inch by 3-1/2 inch MNPT configuration suited for plumbing, HVAC, gas, and hydronic heating applications.

Product Information

Standard Information

• Brand: MERIT BRASS
• Manufacturer Part Number: NIPBR34-312

Technical Specifications

• Nominal Pipe Size: 3/4 inch
• Overall Length: 3-1/2 inches
• Thread Type: MNPT (Male National Pipe Thread)
• Schedule: SCH 40 / STD
• Construction: Seamless
• Material: Brass
• Origin: Domestic