Pasco 4817-PA 1 Inch Npt Pipe Tap

Product Description

The PASCO 4817-PA is a 1-inch NPT pipe tap designed for cutting tapered internal threads in pipe fittings, valves, and threaded bosses. Manufactured from high carbon steel, this tap delivers the hardness and edge retention needed to cut clean, accurate threads in iron, steel, and similar materials. It follows the standard NPT tapered thread profile, producing threads that form a pressure-tight mechanical seal when assembled with compatible fittings. Plumbers, pipefitters, and HVAC technicians reach for this tap when chasing damaged threads or tapping new holes in pipe assemblies.

This tap is suited for use in residential and commercial plumbing, HVAC piping systems, and general industrial pipe work where 1-inch NPT threads are required. It is appropriate for tapping threaded connections in iron pipe, steel fittings, and cast components where a reliable, leak-resistant thread form is essential. The tapered profile ensures proper thread engagement as the fitting is torqued into place.

Key Features

• 1-inch NPT tapered thread profile for pressure-tight pipe connections
• High carbon steel construction for hardness and cutting edge retention
• Cuts clean internal threads in iron, steel, and similar materials
• Standard NPT taper angle compatible with industry-standard pipe fittings

Compatibility

Designed for cutting 1-inch NPT tapered internal threads in pipe fittings, threaded bosses, and similar components used in standard plumbing and HVAC piping applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter following applicable plumbing codes such as the IPC or IFGC. Secure the workpiece firmly before tapping and use appropriate cutting fluid to reduce heat and extend tap life. Back the tap out periodically to clear chips and prevent binding. Inspect the finished threads before assembling fittings to confirm full thread form and prevent leaks.