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1/4" Nut & 5/16 Barb

1/4" Nut & 5/16 Barb

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This is a special 1/4" nut and 5/16" barb that will attach to threaded quick disconnects or other 1/4" male flare fittings and allow 5/16" gas tubing to be attached.

Stainless Steel barb with a chrome plated Brass nut.

California Recipients: WARNING: Cancer and Reproductive Harm -
Item # KEG640
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.18 LBS
Community Q&A

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Browse 4 questions Browse 4 questions and 35 answers
Why did you choose this?
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To replace existing fittings
Marty M on Jan 4, 2020
i hope it works with the gas ball lock
James C on Oct 24, 2019
To replace existing fittings
Marty M on Jan 4, 2020
John K. on Oct 30, 2019
i hope it works with the gas ball lock
James C on Oct 24, 2019
Glass washer setup
Robin T on Oct 17, 2019
To use on my gas line.
Ian on Oct 3, 2019
Gas line
Nicolas von C on Sep 30, 2019
Need a screw in to connect to co2 regulator
Glenn H on Sep 10, 2019
To make a beer line cleaning kit
Richard S on Aug 28, 2019
previously ordered parts did not include
Eric S on May 1, 2019
My draft line is 5/16
John S on Apr 1, 2019
Fits gas line
Valued C on Mar 25, 2019
Connect gas to get beer out of keg
Jason M on Feb 22, 2019
Gas line connection
Curt Faust on Feb 8, 2019
Pressurized transfer from fermenter to keg.
Bob T on Feb 4, 2019
Making a corny fermenter
Andrew H on Jan 30, 2019
So I can connect 5/16" air hose to my new SS fittings
APRIL N on Jan 18, 2019
I R NEeDing Tis
Mallory W on Dec 28, 2018
Transfer from SS Brewtech Bucket spout directly to keg
Michael B on Nov 20, 2018
fits the ball lock
Brad W on Nov 17, 2018
for QC
Scott on Oct 30, 2018
Need for gas line.
Michael Hoccom on Jul 9, 2018
RYAN M on Jun 26, 2018
Changing out gas lines
Estaban F on Jun 13, 2018
gas lines
Jeremy W on May 31, 2018
I like this for CO2 lines
Domingo T on May 24, 2018
Convenience, I suppose
Charles C on May 5, 2018
Converting my keg system to increase ease of cleaning and interchangeability
Kenneth Z on Apr 18, 2018
Easy to separate from the tube and clean
Becky G on Mar 23, 2018
To finish quick connections on kegging and kegerator setup
Robert L G on Mar 22, 2018
Setup portable party keg.
Joe Ormand on Feb 8, 2018
to use on end of gas lines
Randall S on Jan 19, 2018
John K. on Oct 30, 2019
Glass washer setup
Robin T on Oct 17, 2019
Do I need to purchase a flare fitting washer with this set?
Doc Farmer on Feb 26, 2018
1/4" Nut & 5/16 Barb
Flare Fitting - Washer
Flare Fitting - Washer
BEST ANSWER: You need a flare fitting washer for every flare connection you make. Also get lots of extras, since they're tiny and easy to lose in a drain, etc.
Here comes a dumb one so brace yourself... can I (or should I) silver solder a stainless steel pipe onto this?
Eric Hartman on Apr 27, 2019
BEST ANSWER: Hi Eric - I'm not sure what the exact application would be to solder a SS pipe onto the flare fitting. Would it be possible to explain a bit further?
Will your Flare Fitting - 1/4 in. Swivel Nut (Stainless Steel) work with the 5/16 barb this setup comes with?
Jason Wagner on Jul 27, 2018
1/4" Nut & 5/16 Barb
Flare Fitting - 1/4 in. Swivel Nut Stainless Steel
Flare Fitting - 1/4 in. Swivel Nut Stainless Steel
BEST ANSWER: Hi Jason - Surprisingly, these will NOT fit together. KEG601 is designed for a 1/4" barb.

4.9 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Works great
Does what is need for it to do
June 21, 2019
7 months ago
Good product
Works as intended. Will buy again.
April 23, 2018
1 year ago
Works fine , needs just the right torque.
March 4, 2018
1 year ago
time and effort saver!
In the past I used the barbed gas/beverage ball lock connects for my kegs. I recently switched to threaded (flared). Using these (item # KEG640) as the female end on the gas tubing makes it so much faster and easier when filling a keg. I can hook the beverage ball lock connect to the gas tube to purge the keg so much easier now! I highly recommend!
May 5, 2014
works great for my keg setup
No leaks. No problems.
June 13, 2013
Nice for gas tubing
Versatile and leak free. These are great!
May 6, 2013
No more cutting tubing
Like a poor man's quick disconnect. These works great when you want to unscrew your tube from a ball lock versus removing a clamp and cutting the tubing. Easy to install and clean, too. My whole system is using these now.
May 2, 2013