Answer
Nov 11, 2024 - 11:58 AM
The NPSM thread, or National Pipe Straight Mechanical thread, is a standard for straight pipe threads used primarily in mechanical and low-pressure applications. It is defined by the American National Standard Institute (ANSI) and typically used for fittings that require a tight seal without the need for thread sealant, relying instead on a gasket or O-ring. The NPSM thread is not tapered and is often used in conjunction with NPT (National Pipe Tapered) threads where a mechanical connection is needed without a fluid-tight seal.
