Air Compressor Fittings.

[TimberXX]

I have two different npt 1/4 inch fittings for my air compressor. But they don't seem to be interchangeable. The one with a thicker collar needs to be forced a little more. What is the different name of these two fittings? Since I am in quarantine, I need to buy them online.

 

[Industrial Toys]

Qual;ity Control?

I have never seen fittings that similar, if they are supposed to be different. What do YOU think they are?

 

[Peter 315]

They look like type m Couplers & Plugs | Air Compressor Couplers & Plugs

 

[radios1]

I know for a fact there are a few different types of air hose fittings, and you have to buy the matching one's to fit. apparently, there's no standard for some odd reason!.. BTW, forcing it in is not good!. look here for a few types. McMaster-Carr

 

[Peter 315]

I only use Milton and get them thru home depot price seems to be the best around...

 

[GLyford]

The thicker one might be type P, where the thinner one looks like I/M?

Milton P-Type Air fittings - The Garage Journal Board

 

[Motorboatin]

The one on the right is an I/M fitting which is the most universal. Not sure what the other one is

Just buy new I/M fittings and toss the other style. Fittings are cheap


Edit: I/M stands for Industrial/M. It’s Milton industries “Industrial” fitting and is the most commonly used in the USA

 

[Industrial Toys]

I have hundreds of "M" fittings that I decommisioned. I never saw different styles or had issues with connection. BUT, I changed to "A" I think. Don't know, got them all out of one Shut Down Manufacturing facility and it's the one all the Industry around here uses. I switched, because I much preffered the one handed connect feature.

 

[Peter 315]

I have hundreds of "M" fittings that I decommisioned. I never saw different styles or had issues with connection. BUT, I changed to "A" I think. Don't know, got them all out of one Shut Down Manufacturing facility and it's the one all the Industry around here uses. I switched, because I much preffered the one handed connect feature.

You can get the M style one handed also .........

 

[oosik]

I hear you there Timberxx. I have five different "tools" for my compressor. Air nozzles, tire chucks, etc. I took the fitting that fit best into Spokane to the House of Hose. They specialize in all things - air compressor. They matched with four new fittings. Success.........

No doubt - this is one area where there is no such thing as standardization. All five of my tools had a different end connector fitting.

 

[TimberXX]

Awesome guys. Thanks!

 

[Ford850]

I switched all of my fittings to Milton type M last year. I had a mixture of several name brands and they always seems to have slow leaks and difficult to connect. Now I have 2 coffee cans full of used fittings, and nice quiet Milton M connections on all hoses and tools. I got my Milton fittings at Rural King because they were handy but HD would be my mail order choice.

 

[Industrial Toys]

I have a large air system that goes to the house and various buildings. I have a small valve on every port to cut down on leakage. Not nice having to air up the whole (empty) system because you need a bit of air.

 

[Fallon]

I switched all of my fittings to Milton type M last year. I had a mixture of several name brands and they always seems to have slow leaks and difficult to connect. Now I have 2 coffee cans full of used fittings, and nice quiet Milton M connections on all hoses and tools. I got my Milton fittings at Rural King because they were handy but HD would be my mail order choice.

Same, only it's a box of old fittings instead of a can & I went with V instead of M. The Milton Vs flow better. Milton's seem to last longer & be better average quality than most. Not to expensive either although the are a fair bit more than Harbor Freight type stuff.

A few tools & hoses havent been converted yet, nor has my new Vair 400 12v compressor. I made some adapters to go from whatever fittings they are to the Vs just so I can stick with 1 standard. Even if I dont need the high flow on those tools or what not.

A Quick Guide to Air Line Couplers and Plugs