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Brass Push-In Tube Fitting, 0.19 Tube OD to 1/8-18 Male NPT, Straight

A 1.04	B 0.90	D 0.16	Brand Alkon Corp	Brand Alkon Corp	Pack Size 1.00	UOM EA	Supplier Part Number AQ68-P-3X2	Thread 1 1/8-18	Tube O.D. 0.19	Tube O.D. 0.19	Alternate Part Numbers Alternate Part Number C1CJ87, Alternate Part Number MI-01514443, Alternate Part Number MINO-00034Q09441	Product Weight 0.03 lbs

Product Questions & Answers 2

Product Questions & Answers

Will this here fitting work alright with a soft copper line?

Question by: Sheila K on Apr 7, 2026, 7:44 AM

Yes, this Alkon fitting is designed for use with soft metal tubing, along with polyurethane and polybutylene.

Answer by: Customer Support on Apr 9, 2026, 6:50 AM

tubing I got is polybutylene, about 3/16 OD, will that push right into this fitting or do I need something different?

Question by: Jerry H on Apr 18, 2025, 10:36 AM

Polybutylene tubing is one of the compatible types for this fitting, and the 0.19 inch tube OD is what it's built around. That works out to just about 3/16, so you're in the right range. When you push the tube in, the gripping teeth catch it and the Buna-N O-ring seals against the outside diameter. One thing worth knowing is the tubing needs to be in decent shape at the cut end, clean and square, so the teeth get a solid bite and the O-ring seats right.

Answer by: Customer Support on Apr 20, 2025, 6:57 AM

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