GRACO 155665 - Union Adatper Fitting, 3/8", 5000 PSI

High-pressure union fitting designed for airless spray systems, enabling secure connections in paint delivery systems with maximum working pressure of 5000 PSI for reliable performance in professional painting applications

Specifications

• Inside Diameter: 3/8 in swvlX x 3/8 in (9.5 mm) (9.5 mm x 9.5 mm)
• Thread: 3/8 in NPT(m) x 3/8 in npsm(F) (9.5 mm x 9.5 mm)
• Max Working Pressure: 5000 PSI (345 bar, 34.5 MPa)
• Fitting Type: Union

Features

• High pressure rating up to 5000 PSI
• NPT male to NPSM female threading
• Durable construction for industrial use
• Precision engineered for leak-free connections
• NPTM to NPSM thread configuration
• Designed for airless spray systems

Applications

• Hydraulic system connections
• Spray equipment assembly
• High-pressure fluid transfer systems
• Industrial coating applications
• Airless paint spraying systems
• High pressure paint delivery connections

Compatible Equipment

• GH 733
• GH 833
• Airless spray equipment
• High pressure hose systems
• GRACO airless spray equipment
• 3/8 inch airless hoses

Related Parts

• 156823 - Airless Union Fitting, 1/4" NPT(M) x 1/4" NPSM(F), 5000 PSI (345 Bar
• 157705 - High-Pressure Union Fitting, 1/4" NPT(M) x 3/8" NPSM(F), 5000 PSI (345 Bar
• 155570 - Union Swivel 1/4" NPT for Air Kit 246483, 10000 PSI Zinc Plated
• 159153 - Professional-Grade Swivel Union, 3/8" NPT(F) x 1/4" NPSM(F), 5000 PSI (345 Bar
• 156953 - Mounting Stud, 1/4 NPT; 3/8–16

Part of the UNIONS category for GH 733 & GH 833 accessories. Maximum working pressure specification provided. This is a union fitting that connects different thread types (NPTM to NPSM) commonly used in airless spray systems Part of GRACO's comprehensive airless fittings lineup designed to work seamlessly with their airless spray systems and hoses.

Reference Manuals

• 337554 (Page 21) Gas Airless Sprayers
• 343214 (Page 11) Airless Accessories
• 344386 (Page 7) Airless Accessories Brochure
• 345020 (Page 77) Finishing Accessories
• 3J0416EN (Page 14) ENAP-A