4" x 3" MNPT x FNPT 304 SS Hex Bushing

The ZORO SELECT - 400B113N040030 is a stainless steel hex bushing designed to connect a larger 4-inch pipe to a smaller 3-inch threaded opening. It features a hexagonal outer profile which facilitates wrench tightening for installation and removal. Constructed from 304 stainless steel and with a Class 150 pressure rating (per MSS-SP-114), this fitting supports maximum operating pressure: 300 psi. Rated for use with air, natural gas, non-potable water, oil, potable water, and steam within the specified material and pressure ratings; complies with applicable low-lead requirements for potable water systems. Key Features:

• Material: 304 stainless steel alloy
• Connection Type: Male NPT on 4 in side and Female NPT on 3 in side
• Size: 4" x 3" nominal pipe size
• Pressure Ratings: Class 150 (per MSS-SP-114), maximum operating pressure: 300 psi, maximum steam pressure 150 psi
• Pipe Schedule Compatibility: Schedule 40
• Hex Size: 120.3 mm across flats for wrench engagement
• Overall Length: 50.8 mm
• Threading: 8 threads-per-inch on both male and female ends
• Standards: Material conforms to ASTM A-351; threads conform to ANSI B1.20.1; meets MSS-SP-114 Class 150 pressure ratings
• Applications: For use in air, natural gas, non-potable water, oil, potable water, and steam systems within the specified pressure and material compatibility constraints
• Includes no pre-applied thread sealant or sealing components