SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

Brass Push Tube Fitting, Inch Tube OD Reducer

Ask A Question

Description & Features

This high-quality fitting is an essential component in various industrial applications. The NUMATICS 1/2 to 3/8 reducer is crafted to provide durability and reliability under rigorous conditions.

Designed by NUMATICS a trusted brand under the ASCO LP family it ensures precise connections and optimal performance. The fitting is engineered for easy installation and secure attachment.

With dimensions of H: 0.669 in T: 0.5 and T1: 0.375 it seamlessly integrates into diverse setups. This component plays a crucial role in facilitating the correct measurement transitions needed for effective system functionality.

Ideal for use in a wide range of industries this fitting enhances overall performance and efficiency. It caters to the need for consistent and dependable fittings in demanding environments.

Manufacturer Part Number: C1LC51

Supplier Part Number: INB121-102-308

Specifications

Brand
Asco
Connection Size 1
1/2 in
Connection Size 2
3/8 in
Connection Size 3
1/2 in
Connection Type
NPT, Push-Fit
Connection Type 1
Push-In Tube
Connection Type 2
NPTF
Connection Type 3
NPTF
Connection Type 4
NPTF
d1 Dimensions
0.295 in
Dimensions
1.673 in L x 0.669 in H
Finish
Nickel-Plated
Fitting Type
Reducer
Material
Brass
Material Construction
Brass
Series
INB121 Series
Tube OD
1/2 in

Similar Products

Model Number T T1 D d1 Dimensions L H Price Action
Brass Push Tube Fitting, Inch Tube OD Reducer

INB121-102-104 Brass Push Tube Reducer

0.5

0.25

0.472

0.157 in

1.417

0.531 in

Brass Push Tube Fitting, Inch Tube OD Reducer

INB121-104-532 Brass Push Tube Reducer

0.25

0.157

0.394

0.118 in

1.142

0.492 in

Brass Push Tube Fitting, Inch Tube OD Reducer

INB121-308-104 Brass Push Tube Reducer

0.375

0.25

0.472

0.157 in

1.339

0.531 in

Product Questions & Answers (2)

Question by: Shane R on Apr 6, 2026, 8:47 AM
Got a line running half-inch tube that needs to step down to 3/8 before it hits the valve block. This the right fitting for that?
Answer by: Customer Support on Apr 8, 2026, 6:36 AM
That's what this one does. It's a push tube reducer built to connect 1/2 inch OD tube on one end and 3/8 inch OD tube on the other. The T dimension is 0.5 and T1 is 0.375, so the tube sizes line up with what you're describing. Brass construction and the push-to-connect design make it pretty straightforward to get secured without a lot of extra hardware.
Question by: Dale W on Oct 6, 2025, 7:08 PM
got a 1/2 inch tube line but the next piece is 3/8. is this the right reducer for that?
Answer by: Customer Support on Oct 8, 2025, 10:21 AM
For stepping down from 1/2 inch tube OD to 3/8 inch tube OD, this Numatics push tube reducer matches that size change. It is called out as a 1/2 to 3/8 reducer with T = 0.5 and T1 = 0.375.

Tell us what you need and we'll get back to you.

Fields marked * are required.