Hose Fittings For Nitrous Oxide

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.

Brass nuts have good corrosion resistance and are softer than 316 stainless steel nuts, so they're easier to thread together. Chrome-plated brass nuts have comparable corrosion and wear resistance to aluminum-plated brass nuts, and have a bright, shiny appearance.

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

Brass
Number	Thread Size	Thread Type	Thread Direction	Max. Pressure	For Use With		Each
CGA 326	0.830"-14	NGO	Right Hand	3,000 psi @ 72° F	Nitrous Oxide	79215A672	00000
Chrome-Plated Brass
CGA 326	0.830"-14	NGO	Right Hand	3,000 psi @ 72° F	Nitrous Oxide	4183N403	00000

Male

Male Nut

Maximum Pressure: See table
Maximum Temperature: 120° F, except DIN 477 No. 12: 250° F

Brass
Number	Pipe Size	Thread Type	Thread Direction	Max. Pressure	For Use With		Each
DIN 477 No. 12	3/4	BSPT	Right Hand	4,300 psi @ 72° F	Nitrous Oxide	79215A812	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.

Brass nipples have good corrosion resistance and are softer than 316 stainless steel nipples, so they're easier to thread together. Chrome-plated brass nipples have better corrosion and wear resistance than unplated brass nipples and have a bright, shiny appearance.

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
Brass—Tighten With Wrench
CGA 326 (3,000 psi @ 72° F)	1/4	NPT	2 1/2"	Nitrous Oxide	79215A673	00000
Chrome-Plated Brass—Tighten With Wrench
CGA 326 (3,000 psi @ 72° F)	1/4	NPT	2 1/2"	Nitrous Oxide	4183N15	00000

Nuts

Female Nut

Maximum Pressure: See table
Maximum Temperature: 120° F

Brass
Number	Gender	Thread Size	Thread Type	Thread Direction	Max. Pressure	For Use With		Each
CGA 326	Female	0.830"-14	NGO	Right Hand	3,000 psi @ 72° F	Nitrous Oxide	79215A672	00000
Chrome-Plated Brass
CGA 326	Female	0.830"-14	NGO	Right Hand	3,000 psi @ 72° F	Nitrous Oxide	4183N403	00000