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Brass Compression Nut For Plastic, Copper, & Aluminum Tubing, 0.50 Inch Tube OD

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Description & Features

The DANFOSS POWER SOLUTIONS Brass Compression Tube Nut 61X8 is designed for use with plastic copper and aluminum tubing offering versatile application in instrumentation hydraulic and pneumatic systems. Constructed from CA360 brass this compression nut ensures durability and reliable performance under various conditions.

With a working pressure up to 2000 psi and a temperature range from -65F to +250F when utilized with metal tubing it meets ASA ASME and SAE standards ensuring safety and quality. For increased vibration resistance a long nut option is available.

Assembly is straightforward requiring no flaring of the tubing. Simply cut the tubing slide the nut and sleeve insert the tubing into the fitting body lubricate the threads and tighten. Plastic tubing requires a 2030 insert and it is not recommended for use with steel tubing.

The product model label is Weatherhead Brass Compression Fittings and it carries the ECCN EAR99 designation.

Supplier Part Number: 61X8

Specifications

C
0.81
D
0.51
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
L
0.62
Supplier Part Number
61X8
Tube O.D.
0.50
Tube O.D.
0.5
Alternate Part Numbers
Alternate Part Number C1HQ79, Alternate Part Number MI-00333925, Alternate Part Number MINO-00925F73316
Product Weight
0.05 lbs

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Product Questions & Answers (1)

Question by: Roy M on Nov 27, 2025, 4:22 PM
does this nut work with copper tubing or is it just for plastic lines?
Answer by: Customer Support on Nov 29, 2025, 6:53 AM
Copper tubing is one of the primary uses for this nut, along with plastic and aluminum. It's built from CA360 brass and handles working pressures up to 2000 psi when paired with metal tubing like copper. No flaring required either. Just cut your tubing clean, slide the nut and sleeve on, seat the tubing into the fitting body, put a little lubrication on the threads, and snug it down.