Go to your local Napa dealer and ask for Weatherhead part #7727 for 1/4" line, #1074 for 5/16" line, and #7915 for 3/6" line. These are straight seal fittings with female inverted flair just like the one you have pictured.
I think most 94's used a compression type fitting ( I know mine do, two are 8BA's and one is ECG, had 1/4 inch tubing.. I used a ferrel (spelling) for sealing. I think I got the fittings from this guy Ken's Carbs, 203-375-9340.
#5 AN male fitting to hose outlet. The one in the first picture on the carb looks to be to a compression line fitting for solid line, the kind that use a ferrul. Flatman
Came across this post trying to find somewhere to pick up the fuel line fittings for the 8BA fuel pump and Holley 94. NAPA carries a similar fitting to the one from thehotrodcompany.com. It's Weatherhead 05706B-305. $5.99 a piece. Eric
The fitting shown in question is an aftermarket repair fitting---it had slightly deeper than normal 1/2" threads and screwed into a carb with damaged inlet threads or damaged seat. I don't know of a source, but many 94's out ther have them.
Is the Weatherhead 05706B-305. $5.99 a piece. as mentioned by Boydwho the factory original fitting that was in this carb? They made 17 versions of the 94, so maybe they used a mul***ude of fittings. The copper coated fuel line for a 1940 Ford from Mac's and Carpenter come with a fitting and ferrule that I can't get to compress or tighten on a Holley 94 Thanks in advance, lowtemp
The lower pic looks like a "Ford Nut", weatherhead 59X4...this screws into stock carb top or the repair fitting discussed. Some later Models, after 1951 or so, use an adapter fitting that uses flare type line. Upper fitting shown is made to fit original ball compression hole in carb, adapt to rubber hose...available in several sizes of hose.