Midland Industries SS1404-04-06 Swivel Adapter Nptf Npsm

Product Description

The MIDLAND INDUSTRIES SS1404-04-06 is a male-to-female pipe swivel adapter machined from 316 stainless steel. It connects a 1/4-inch male NPTF thread to a 3/8-inch female NPSM swivel thread, allowing a degree of rotational movement at the female end without loosening the seal. The adapter is rated to 1000 degrees F, making it suitable for high-temperature fluid and gas transfer applications. Its 316 stainless construction provides strong resistance to corrosion in wet, chemical, or outdoor environments. Plumbers, pipefitters, and industrial technicians install this fitting where a swivel connection is needed between fixed and moving pipe or hose assemblies.

This adapter is used in residential, commercial, and industrial piping systems where NPTF to NPSM transitions are required. Typical applications include hydraulic lines, compressed air systems, fuel transfer, and instrumentation plumbing. The swivel design reduces torque stress on connected components during assembly and operation, which is especially useful in confined or angled installations. Its compact form factor fits into tight spaces where rigid adapters would be impractical.

Key Features

• 316 stainless steel construction for corrosion resistance in demanding environments
• 1/4-inch male NPTF x 3/8-inch female NPSM swivel thread configuration
• Rated to 1000 degrees F for high-temperature service
• Thread specification: 1/4-18 x 3/8-18
• Swivel end allows rotation during assembly without compromising the seal
• Lightweight at 0.141 pounds for easy handling and installation

Compatibility

Designed as an OEM-style replacement or direct-install fitting for piping systems requiring a 1/4-inch male NPTF to 3/8-inch female NPSM swivel transition in stainless steel.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC or IFGC standards for the fluid or gas being conveyed. Depressurize and isolate the line before removing or installing any fitting. Apply thread sealant compatible with the media and temperature rating to the male NPTF threads only - do not apply sealant to the swivel female end. Confirm thread engagement is complete and leak-test the connection before returning the system to service.