B K Mueller 583-001HN Black Pipe Nipple Close 1/2 Inch

Product Description

The B K Mueller Industries 583-001HN is a close-pattern black steel pipe nipple in a 1/2 inch nominal pipe size. A close nipple has threads running nearly the full length of the fitting, leaving minimal or no unthreaded center section. This allows two fittings or valves to be joined with the shortest possible threaded connection. Black steel pipe nipples are standard hardware in gas distribution, steam, and industrial fluid systems. Licensed plumbers and pipefitters install this type of fitting where compact inline connections are required and corrosion-resistant coatings are not a priority over iron or steel construction.

This close nipple is suited for residential and light commercial gas piping, steam heating systems, and industrial pipe assemblies where a tight, compact male-to-male threaded connection is needed. The 1/2 inch nominal size is among the most common in residential gas branch lines and low-pressure steam systems. This SKU is packaged in a quantity of 25 units per pack, making it practical for contractors stocking vans or supply rooms.

Key Features

• Close-pattern threading for the shortest possible inline pipe connection
• 1/2 inch nominal pipe size fits standard NPT fittings and valves
• Black steel construction suitable for gas, steam, and non-potable fluid service
• Sold in a 25-unit package for contractor-quantity purchasing
• Standard NPT thread form for compatibility with common threaded fittings

Compatibility

Designed as an OEM-style replacement or standard-stock close nipple for 1/2 inch NPT threaded piping systems in residential and commercial plumbing, gas, and steam applications.

Installation Notes

Close nipples are installed by licensed plumbers or pipefitters and require no special tools beyond standard pipe wrenches. Apply appropriate thread sealant or PTFE tape rated for the service type before assembly. Shut off and depressurize the gas or fluid system completely before removing or installing any threaded fitting. For gas piping, all work must comply with local codes and the International Fuel Gas Code (IFGC).