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Brass Push Tube Fitting, Inch Tube OD Reducer

Description & Features

Crafted with precision by Numatics this push tube fitting serves as an Inch Tube OD Reducer. It ensures a smooth transition between tubes with different diameters specifically from 3/8 inch to 1/4 inch.

Engineered for efficient fluid dynamics the reducer maintains robust performance in various industrial applications. Its high-quality brass construction offers durability and excellent resistance to corrosion making it suitable for use in demanding environments.

The reducer measures 0.531 inches in height with tube diameters of 0.375 inches and 0.25 inches ensuring a reliable fit and secure connection. This fitting is an essential component in optimizing fluid control systems.

MPN: C1LC53

Supplier Part Number: INB121-308-104

Specifications

D 0.47	D1 0.16	Brand Numatics - C/O Asco Lp	Brand Asco Lp Cylinder	Pack Size 1.00	UOM EA	H 0.531 in	L 1.34	Supplier Part Number INB121-308-104	T 0.38	T1 0.25	Alternate Part Numbers Alternate Part Number C1LC53	Product Weight 0.02 lbs

Similar Products

Model Number	T	T1	D	D1	L	H
INB121-102-104 Brass Push Tube Reducer	0.5	0.25	0.472	0.157	1.417	0.531 in
INB121-102-308 Brass Push Tube Reducer	0.5	0.375	0.669	0.295	1.673	0.669 in
INB121-104-532 Brass Push Tube Reducer	0.25	0.157	0.394	0.118	1.142	0.492 in
INB121-308-104 Brass Push Tube Reducer	0.375	0.25	0.472	0.157	1.339	0.531 in

Product Questions & Answers (2)

Question by: Kent G on Nov 8, 2025, 9:00 PM

trying to step down from 3/8 tube to a 1/4 on a pneumatic line, will this fitting handle that transition without needing any adapters in between?

Answer by: Customer Support on Nov 10, 2025, 6:55 AM

That's what it's built for. The larger end connects to 3/8 inch OD tube and the smaller end connects to 1/4 inch OD tube, so it handles that size reduction in one piece. No additional adapters needed in between. It's a push-to-connect style, so you're just pushing the tubing straight in until it seats. Brass construction holds up well in typical shop and industrial environments, and Numatics makes reliable fittings, so you shouldn't have any trouble getting a secure connection on both ends.

Question by: Dwayne R on Dec 14, 2025, 8:26 AM

Reckon this reducer fitting would work alright with some standard nylon tubing, or is it meant for something else?

Answer by: Customer Support on Dec 15, 2025, 8:54 AM

This fitting is constructed from brass, offering good durability and corrosion resistance for demanding environments where standard nylon might not hold up.