Ndl Industries NIPPLE3/4X5 Black Iron Pipe Nipple 3/4x5 in

Product Description

The NDL INDUSTRIES NIPPLE3/4X5 is a black malleable iron pipe nipple designed for gas piping systems and related plumbing applications. Measuring 3/4 inch in diameter and 5 inches in overall length, it features male threaded connections on both ends (MPT x MPT) conforming to ASME B1.20.1 thread standards. The black finish is standard for gas service piping, and the malleable iron construction provides the ductility and strength required in threaded fitting assemblies. Licensed plumbers and gas fitters install this fitting in residential and light commercial gas distribution lines and related piping systems.

This nipple is suited for gas pipe and fitting applications where a short threaded extension or connection between two female-threaded components is needed. It meets NSF 61/372 requirements for potable water contact and carries CRN and HARDI compliance, making it appropriate across a range of jurisdictions and trade applications. The 3/4 inch pipe size is common in residential gas supply lines feeding appliances such as furnaces, water heaters, and ranges.

Key Features

• Black malleable iron construction provides ductility and resistance to cracking under threaded assembly torque
• Male threaded on both ends (MPT x MPT) per ASME B1.20.1 for consistent thread fit
• 3/4 inch pipe size by 5 inches overall length — a common dimension for gas appliance connections
• Meets NSF 61/372, CRN, and HARDI standards for broad jurisdictional acceptance
• Black finish is code-recognized for gas service piping in most jurisdictions

Compatibility

Designed as an OEM-style replacement and standard-stock fitting for residential and light commercial gas pipe assemblies using 3/4 inch threaded black iron pipe and fittings.

Installation Notes

Installation should be performed by a licensed plumber or gas fitter in accordance with applicable local codes and the International Fuel Gas Code (IFGC). Shut off the gas supply and verify zero pressure at the line before disassembling or installing any threaded gas fitting. Apply an approved thread sealant or listed gas-rated PTFE tape to the male threads before assembly. Do not over-torque; use a backup wrench on adjacent fittings to avoid stressing upstream connections.

Technical Specifications

• Material: Malleable Iron
• Finish: Black
• Pipe Size: 3/4 inch
• Overall Length: 5 inches
• End Connection: Male Threaded x Male Threaded (MPT x MPT)
• Applicable Standards: ASME B1.20.1, NSF 61/372, CRN, HARDI
• Product Category: Gas Pipe and Fittings

Standard Information

• Brand: NDL INDUSTRIES
• Manufacturer Part Number: NIPPLE3/4X5