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The EATON 11043 is a brass compression tube nut designed to secure tubing in compression-style fittings used in fluid and gas line assemblies. The nut threads onto a compression fitting body and compresses a ferrule against the tube outside diameter to create a leak-resistant mechanical seal. With a 7/16 inch tube outside diameter specification, this nut suits common small-bore tubing applications found in HVAC, plumbing, and refrigeration work. Brass construction provides corrosion resistance and reliable seating against soft and hard tubing materials. This SKU is sold as a pack of 25 nuts.
Compression tube nuts in this size are commonly used in residential and light commercial installations where copper or brass tubing runs require a repeatable, tool-assembled connection. Typical applications include refrigerant line accessories, water supply lines, instrument tubing, and pneumatic control circuits. Licensed HVAC technicians and plumbers install these nuts as part of compression fitting assemblies during new construction, retrofit, or repair work. The 25-count pack is suited to service contractors who replace or install multiple fittings per job.
Designed as an OEM-style compression tube nut for use with 7/16 inch OD tubing in standard compression fitting assemblies. No specific model or system compatibility was provided in the product data.
Compression tube nuts are installed by licensed plumbers and HVAC technicians in accordance with applicable IPC and IFGC guidelines. Before servicing any line, shut off fluid or gas supply and depressurize the system. Hand-tighten the nut onto the fitting body before applying a wrench to avoid cross-threading. Do not overtighten, as excessive force can deform the ferrule and compromise the seal.
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