- For inner duals, both ends lock on threads
- 1/4" female NPT
- Warning: Sealing type chucks are for use on Milton Inflator Gauges

Milton recommends this 693 air chuck be used with an inflator gauge, as it is designed to hold onto a valve stem. Used with a hose and no means of air pressure regulation could result in destructive over-inflation of a tire.
This particular air chuck also can often reach through the valve stem access hole in a wheel-cover, to a shorter valve stem hidden there, avoiding the need to remove the hub-cap/wheel-cover.
That it will also hold onto a valve stem is also a nice feature for airing tires, but the threads will eventually wear to the point the tool must be held in place.
I personally like the S693 air chuck for use with small portable air tanks having a shutoff valve and gauge in the line. But, it also works nicely if installed to any of the Milton 500 Series inflation gauges with a longer hose.
1/4-inch FNPT threads
There is also a longer reach model that is 12 3/4-inches long - the Milton Industries S693-12.
Made in the USA

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