Nibco, Inc. 6042 3/4" FTG x 3/4" MNPT Copper Adapter
Connects 3/4-inch copper tube to male NPT threads for air, gases and potable water up to 466 psi at 200 °F
- Reliable potable-water service with wrot-copper construction
- Handles 466 psi at 200 °F for demanding pressure needs
- Withstands 400 °F maximum temperature for hot-line use
- Connects 3/4 in FTG sweat to 3/4 in MNPT threads
- Straight adapter shape simplifies in-line installations
Sweat Adapter for Air, Gases and Water
This NIBCO 6042 straight adapter joins a 3/4 inch copper tube to a 3/4 inch male pipe thread. The wrot copper body handles potable water, air and gas lines in residential and light commercial plumbing systems.
Replaces Separate Fitting Combinations
A single straight adapter removes the need for a separate coupling and threaded nipple when transitioning from sweat to MNPT connections. The jump is worth it whenever a leak-free, one-piece joint speeds up installation and reduces potential failure points.
Suits Installers Needing 466 psi at 200°F
Plumbers and HVAC technicians who require a pressure rating of 466 psi at 200 degrees Fahrenheit and a maximum temperature of 400 degrees Fahrenheit will find this fitting appropriate. Builders who need a different connection type, a reducing size or a non-copper material should look at other fittings.
How it compares
Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.
- Price $7.99
- Cheaper than about 75% of the 2,955 comparable items (median $17.99).
Specifications
| Product | |
|---|---|
| Brand name | NIBCO |
Questions about this item
Will the 3/4" FTG sweat end accept a 7/8" OD copper tube?
Yes, the fitting side A is sized for 3/4" copper tube which has a 7/8" outer diameter.
How do I correctly solder the FTG end to copper pipe?
Clean both surfaces, apply flux, insert the tube fully into the fitting socket, then heat evenly and feed solder until the joint is filled.
When should I replace this adapter in a potable water system?
Replace if you see green corrosion, pitting, leaks at the joint, or after any freeze event that may have stressed the copper.
More in Hose Fittings, Adapters & Clamps
Similar items
Alphacool 64213 G1/4 Male-Female 90° L Coupling - Deep Black
- This angled adaptor…
Black Box Corporation FOT120 SC SC Rectangular Fiber Optic Coupling
Alphacool 64203 G1/4 45° Revolvable Angled Coupling Chrome
- This angled adaptor…





