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Brass Push>Connect Air Brake Tube Fitting, 0.50 Inch Tube OD To 1/4-18 Male NPT, Straight

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Description & Features

The Brass Push>Connect Air Brake Tube Fitting is a robust solution designed for seamless air brake system integration. Engineered from CA360 brass this fitting ensures durability and reliable performance. It fits a 0.50-inch tube OD and a 1/4-18 Male NPT connection.

This fitting meets D.O.T. FMVSS 571.106 and SAE J1131 requirements making it a dependable choice for air brake applications. Featuring an easy fast assembly it includes a one-piece fitting that is also field serviceable and reusable.

With a temperature range from -40F to +200F and moderate vibration resistance this air brake fitting is versatile across various demanding environments. It offers a vacuum to 150 psi pressure range.

Materials used include ethylene propylene O-ring for a secure seal.

Assembly Instructions: 1. Use a tube cutter to make a square cut (max 15 angle). 2. Insert tubing into fitting until a solid stop is felt. 3. Tug the tubing gently to confirm secure fitting.

Disassembly: 1. Ensure no air pressure is present. 2. Depress the collet head using fingers or a release tool. 3. Pull the tubing from the fitting while the collet is depressed.

Supplier Part Number: 1868X8X4

Specifications

Brand
Danfoss
Connection Size 1
1/2 in
Connection Size 2
1/4 in
Connection Type
MNPT, Tube
Connection Type 1
Tube
Connection Type 2
Male NPT
Dimension Standards
SAE AA0102
Dimensions
1.46 in L
Fitting Type
Connector
For Use With
Nylon Air Brake Tubing
Hex Size
0.81 in
Material
Brass
Material Construction
Brass
Series
1868X Series
Thread Sealant
Without Thread Sealant
Thread Size
1/4-18
Tube OD
1/2 in

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Product Questions & Answers (2)

Question by: Phil A on Dec 17, 2025, 9:30 AM
got 1/2 inch air brake tubing already on the truck, will this fitting thread into a 1/4-18 npt port?
Answer by: Customer Support on Dec 19, 2025, 6:59 AM
Fits 0.50 inch tube OD on the push to connect side and has 1/4-18 male NPT threads on the other side, so it’s meant to go into a 1/4-18 NPT female port.
Question by: Debbie B on Sep 15, 2025, 7:04 AM
What kind of temperatures can this handle? Just makin' sure it'll hold up in the cold.
Answer by: Customer Support on Sep 16, 2025, 2:37 PM
This fitting is rated for temperatures ranging from -40F to +200F, making it suitable for a variety of demanding environments.

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