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Brass Compression Fitting For Plastic, Copper, & Aluminum Tubing, 0.31 Inch Tube OD Union

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Description & Features

Designed for use with plastic, copper, and aluminum tubing, this fitting ensures reliable connections in various industrial settings. Meeting ASA, ASME, and SAE specifications, it functions effectively at temperatures ranging from -65deg;F to +250deg;F when paired with metal tubing.

Ideal for instrumentation, hydraulic, and pneumatic systems, this product is engineered to handle working pressures up to 2000 psi with a 4:1 safety factor, depending on tube size. The brass construction offers fair resistance to vibration, with the option to use a long nut for enhanced stability in high-vibration environments.

Manufactured by Danfoss Power Solutions (Aeroquip Inc-Alternate), it provides low-cost, no-flaring assembly, making it a practical choice. Available with either long or short nuts, this fitting accommodates a broad selection of styles and sizes. Utilizing a simple assembly process, the fitting ensures that tubing remains securely in place, bottomed on the fitting shoulder.

**Supplier Part Number:** 62X5

Specifications

Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
L
0.88
Supplier Part Number
62X5
Tube O.D.
0.31
Tube O.D.
0.3125
Alternate Part Numbers
Alternate Part Number C1HQ85, Alternate Part Number MI-00333961, Alternate Part Number MINO-00015X07364, Alternate Part Number MINO-00925F73330
Product Weight
0.07 lbs

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Product Questions & Answers (4)

Question by: Ross B on Mar 11, 2026, 1:07 PM
Hey, can you tell me what kind of tubing this fitting works with? I've got some different stuff in the shop.
Answer by: Customer Support on Mar 13, 2026, 6:54 AM
It's designed for use with aluminum, copper, and plastic tubing. However, for plastic tubing, you'll need to use a 2030 insert, except with Eaton PT230. It's not recommended for steel tubing.
Question by: Wade S on Apr 30, 2025, 2:42 PM
fitting says it works up to 2000 psi but does that hold true no matter what size tubing your running?
Answer by: Customer Support on May 2, 2025, 8:37 AM
Working pressure on compression fittings like this one varies depending on tube size, so 2000 psi is the top end of the range, not a guaranteed rating across every size. Smaller tube diameters generally support higher pressures, while larger sizes tend to come in lower. The 4:1 safety factor is built into those ratings, which gives you a solid margin. Match the tube size to your system pressure requirements before assuming the max rating applies.
Question by: Marvin G on Oct 10, 2025, 9:54 PM
What kind of pressure can this union handle?
Answer by: Customer Support on Oct 12, 2025, 7:31 AM
It's rated to handle working pressures up to 2000 psi, but keep in mind that's with a 4:1 safety factor and can depend on the size of the tubing you're using.
Question by: Frank S on Mar 8, 2026, 8:00 AM
got some 5/16 tubing i need to tie together, is this 62X5 the right union size for that?
Answer by: Customer Support on Mar 9, 2026, 9:12 AM
The key callout on 62X5 is 0.31 inch tube OD. That’s the tube outside diameter the union is made to connect, and it’s intended for plastic, copper, or aluminum tubing.