CGA Number 670 Hose Fittings

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2 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Nuts for High-Pressure Nipples for Compressed Gas

Slide a high-pressure hose nipple for compressed gas into one of these nuts to connect a pipe to the inlet of a pressure regulator. They are also known as CGA (Compressed Gas Association) nuts and inlet nuts.

316 stainless steel nuts have excellent corrosion resistance.

Nuts with left-hand threads are identified with a notch.

Note: Nuts have a CGA, BS, or DIN number that corresponds to a specific type of gas. Choose a nut with the same number as your tank and other system components.

Female

Female Nut

Maximum Pressure: See table
Maximum Temperature: 120° F, except DIN 477 No. 9: 250° F

316 Stainless Steel
Number	Thread Size	Thread Type	Thread Direction	Max. Pressure	For Use With		Each
CGA 670	1.035"-14	NGO	Left Hand	3,000 psi @ 72° F	Hydrogen Fluoride, Nitrogen Trifluoride, Tungsten Hexafluoride	79215A515	000000

High-Pressure Nipples for Compressed Gas

Commonly used in high-pressure welding applications, these nipples connect your tank to the inlet of a pressure regulator. One side has a threaded pipe end and the other side is designed to sit inside a threaded nut (sold separately) so you can make a threaded connection.

316 stainless steel nipples have excellent corrosion resistance.

Nipples, Tank × Male Regulator

Maximum Pressure: See table
Maximum Temperature: 120° F

	Regulator Connection
For Number (Max. Pressure)	Pipe Size	Thread Type	Lg.	For Use With		Each
316 Stainless Steel—Tighten With Wrench
CGA 670 (3,000 psi @ 72° F)	1/4	NPT	2 17/64"	Oxygen Mixtures	79215A524	000000

Nuts

Female Nut

Maximum Pressure: See table
Maximum Temperature: 120° F

316 Stainless Steel
Number	Gender	Thread Size	Thread Type	Thread Direction	Max. Pressure	For Use With		Each
CGA 670	Female	1.035"-14	NGO	Left Hand	3,000 psi @ 72° F	Hydrogen Fluoride, Nitrogen Trifluoride, Tungsten Hexafluoride	79215A515	000000