The Mosmatic 58.054 DYF Swivel is a high-pressure female-to-female rotary swivel with a 1/4\\” NPTF inlet and 3/8\\” NPTF outlet, offering a step-up configuration ideal for flexible hose assemblies, spray lances, and cleaning tools.
Designed to handle up to 4000 psi, this swivel features a nickel-plated brass body, stainless steel internal components, sealed ball bearings, and a carbide seal system. Integrated weep holes allow early detection of seal wear, making it a durable, maintenance-free solution for demanding pressure applications.
Applications
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Pressure washer hose transitions
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Industrial cleaning tools
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Surface cleaners and chemical sprayers
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Inline connections with step-up sizing (1/4\\” to 3/8\\”)
Features
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Female-to-Female connection (1/4\\” to 3/8\\”)
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Maintenance-free with sealed bearing system
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Carbide seal and weep hole failure indication
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Nickel-plated brass construction
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Full 360° rotation under pressure
Specs
Product Type: High-pressure swivel – DYF
Part Number: 58.054
Pressure: 4000 psi
Temperature: 250°F
RPM: max. 2,000 rpm
Material Type: Brass, nickel plated
Inner Part: Stainless steel
Seal: Carbide
Throughput / Medium: pH 3–12 / filtered 10 microns / compressed air (290 psi)
Thread In (G1): 1/4\\” NPTF
Thread Out (G2): 3/8\\” NPTF
Nominal Width (NW): 1/4\\”
Wrench Size 1 (SW1): 0.87\\”
Wrench Size 2 (SW2): 0.87\\”
Diameter (D): 2.36\\”
Length (L1): 1.76\\”
Weight: 11.0 oz

