Midland Industries 44702LF 3/8 in Fpt Bronze Hex Locknut

Product Description

The MIDLAND INDUSTRIES 44702LF is a lead-free bronze hex locknut designed to secure threaded pipe connections in a wide range of fluid and gas service applications. It features a 3/8-inch female pipe thread (FPT) connection and a 0.77-inch hex dimension, making it compatible with standard wrenches used in the field. At 0.28 inches thick, it provides a low-profile locking seat against fittings and valves. The lead-free bronze construction meets modern plumbing and potable water regulations. This locknut conforms to ANSI B16.15 dimension standards and carries a 125 pressure class rating. It is installed by licensed plumbers, pipefitters, and HVAC technicians working on threaded pipe assemblies.

The 44702LF is rated for use on steam, water, gas, oil, and air service lines, making it a versatile component across multiple trade disciplines. It is well-suited for residential and light commercial installations where a reliable threaded locknut is needed to prevent fitting backout or seal face separation. The lead-free bronze material is appropriate for potable water systems where material compliance is required by local code. Typical applications include securing unions, valves, and reducing bushings in copper alloy threaded piping systems.

Key Features

• Lead-free bronze construction meets potable water material compliance requirements
• 3/8-inch FPT connection conforms to ANSI B16.15 dimension standards
• 125 pressure class rating suitable for a broad range of service pressures
• 0.77-inch hex dimension for standard wrench engagement
• Rated for steam, water, gas, oil, and air service
• Low-profile 0.28-inch thickness fits tight assembly clearances

Compatibility

Designed as an OEM-style replacement and standard-service locknut for 3/8-inch FPT threaded bronze fittings used in steam, water, gas, oil, and air piping systems conforming to ANSI B16.15.

Installation Notes

Installation is performed by licensed plumbers or pipefitters in accordance with applicable local plumbing codes and IFGC requirements where gas service is involved. Shut off and depressurize the affected line before removing or installing any threaded fitting components. Use a properly sized wrench on the hex flats to avoid rounding; do not use pipe wrenches directly on the locknut body. Apply thread sealant or tape appropriate to the service medium per manufacturer and code guidance.