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Brass Push>Connect Tube Fitting, 0.31 Inch Tube OD To 1/4-18 Male NPT, Straight

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Description & Features

The Danfoss / Eaton Push>Connect Swivel Straight Adapter ensures ease of assembly without requiring tools offering both reusability and time-efficient assembly and disassembly. Designed for demanding applications such as compressed pneumatic instrumentation circuit lubricant and cooling lines this fitting operates within a temperature range of -40F to 200F. The fittings are constructed from brass and nickel-plated materials capable of withstanding pressures up to 250 psi and rated at 29.5 inches of mercury vacuum.

It features a 1/4-18 thread and can accommodate a tube O.D. of 0.3125 inches enabling seamless integration into existing systems. The O-ring seals are made of Buna-N with Viton options available on special order. Suitable for use with PT230 and TP160 nylon and PT240 Polyethylene tubing this fitting provides reliable and durable performance.

MPN: C1HY49

Supplier Part Number: 1168X5X4

Specifications

Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
L
1.14
Supplier Part Number
1168X5X4
Thread 1
1/4-18
Tube O.D.
0.31
Tube O.D.
0.3125
Alternate Part Numbers
Alternate Part Number C1HY49, Alternate Part Number MI-00293694, Alternate Part Number MINO-00925F41472
Product Weight
0.04 lbs

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Product Questions & Answers (3)

Question by: Larry B on Dec 22, 2025, 3:22 PM
got a 5/16 tube on hand, will it actually fit this push connect end or am i asking for leaks
Answer by: Customer Support on Dec 24, 2025, 6:44 AM
For this fitting you need 0.3125 inch tube O.D., which is 5/16 inch. It is a straight push to connect on the tube side, with a 1/4-18 male NPT thread on the other end, and it seals with a Buna-N O-ring (Viton is available on special order).
Question by: Ralph J on Apr 1, 2025, 8:08 AM
What kind of tubing is this fitting compatible with?
Answer by: Customer Support on Apr 2, 2025, 11:02 AM
This fitting works with PT230 and TP160 nylon tubing, as well as PT240 polyethylene tubing.
Question by: Howard A on Oct 6, 2025, 2:02 PM
fitting says it goes up to 200 degrees, we run coolant lines that can spike around 180F pretty regular, that gonna be a problem?
Answer by: Customer Support on Oct 8, 2025, 10:35 AM
At 180F you've got a comfortable buffer before hitting the rated ceiling of 200F. The brass and nickel-plated construction holds up well through that kind of thermal cycling, and the Buna-N o-ring seal is suited for that range. Just keep in mind that if your lines ever creep closer to or past 200F on a consistent basis, you'd want to look at a Viton o-ring version, which is available on special order.