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Brass Push Tube Fitting, 0.50 Inch Tube OD To 1/4 NPTF Male, Straight

Description & Features

This Numatics straight fitting connects a 0.50 inch OD tube to a 1/4 NPTF male thread.

The brass push tube fitting is manufactured to Numatics catalog number C1LC18 and is part of the Push Tube Fittings product model line.

SKU: INB103-102-021

Supplier Part Number (MPN): INB103-102-021

Alternate Part Numbers: C1LC18, MI-04546161, MINO-00609X60149

Specifications

Brand Asco	Connection Size 1 1/2 in	Connection Size 2 1/4 in	Connection Type NPT, Push-Fit	Connection Type 1 Push-In Tube	Connection Type 2 NPTF	d1 Dimensions 0.827 in	d2 Dimensions 0.906 in	Dimensions 1.339 in L	Finish Nickel-Plated	Fitting Type Connector	h Dimensions 0.748 in	l1 Dimensions 0.512 in	Material Brass	Material Construction Brass	Series INB103 Series	Tube OD 1/2 in

Similar Products

Model Number	Tube O.D. (T)	Thread 1	d1 Dimensions	D2	L	L1	H
INB103-102-022 Brass Male NPT Push Tube Fitting	0.5	3/8 NPTF	0.827 in	0.906	1.339	0.512	0.748 in
INB103-102-023 Brass Male NPT Push Tube Fitting	0.5	1/2 NPTF	0.827 in	0.906	1.496	0.709	0.748 in
INB103-104-020 Brass Male NPT Push Tube Fitting	0.25	1/8 NPTF	0.551 in	0.551	0.886	0.374	0.531 in
INB103-104-021 Brass Male NPT Push Tube Fitting	0.25	1/4 NPTF	0.472 in	0.551	1.024	0.512	0.531 in
INB103-104-022 Brass Male NPT Push Tube Fitting	0.25	3/8 NPTF	0.709 in	0.709	1.024	0.512	0.531 in

Product Questions & Answers (3)

Question by: Connie M on Oct 10, 2025, 12:56 PM

Got a half-inch OD tube I'm trying to run into a 1/4 NPTF port, this the right fitting for that job?

Answer by: Customer Support on Oct 11, 2025, 2:35 PM

That's what this fitting is built for. It takes a 0.50 inch OD tube on one end and threads into a 1/4 NPTF male port on the other. The push-to-connect end means you're not dealing with ferrules or compression sleeves, just push the tube in and you're good. It's a Numatics piece, catalog number C1LC18, so if you're cross-referencing that number anywhere it'll match right up.

Question by: Merle A on Feb 1, 2026, 2:44 PM

got a half inch OD tube already, will this fitting screw into a 1/4 NPTF port?

Answer by: Customer Support on Feb 3, 2026, 6:55 AM

For a straight tube to threaded connection, it matches a 0.50 inch tube OD on the push-to-connect side and a 1/4 NPTF male thread on the other end.

Question by: Jean R on Nov 6, 2025, 12:04 PM

I need to connect a half-inch tube to a 1/4 NPT male thread... will this do the trick?

Answer by: Customer Support on Nov 8, 2025, 6:05 AM

Yes, this Numatics fitting is designed to connect a 0.50 inch OD tube to a 1/4 NPTF male thread. It's a straight fitting.

Brass Push Tube Fitting, 0.50 Inch Tube OD To 1/4 NPTF Male, Straight

Description & Features

Specifications

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Product Questions & Answers (3)