PARKER Compression Fitting Union: 3/8 in OD x 3/8 in OD Size
The PARKER Compression Fitting Union (MPN 6 HLO-S) is an O-Ring Face Seal Steel Compression Fitting from the Seal-Lok series, sized 3/8 in OD x 3/8 in OD. It is rated for a maximum operating pressure of 9,200 psi.
SKU 3G-OTH-470503
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Product Description
The PARKER Compression Fitting Union (MPN 6 HLO-S) is an O-Ring Face Seal Steel Compression Fitting from the Seal-Lok series, sized 3/8 in OD x 3/8 in OD. It is rated for a maximum operating pressure of 9,200 psi.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a PARKER Seal-Lok compression fitting union used for?
The PARKER Seal-Lok compression fitting union (6 HLO-S) is used to connect two 3/8 in OD tubes in hydraulic systems. Its O-ring face seal design provides leak-free performance in high-pressure industrial applications up to 9,200 psi.
What are the specifications of the PARKER 6 HLO-S compression fitting?
The PARKER 6 HLO-S is a Seal-Lok series O-ring face seal steel compression fitting union. It has a 3/8 in OD x 3/8 in OD size and a maximum operating pressure of 9,200 psi. The manufacturer part number is 6 HLO-S.
Where to buy PARKER Seal-Lok fittings in worldwide?
3G Electric supplies PARKER Seal-Lok fittings like the 6 HLO-S union to customers worldwide. We handle full logistics and customs clearance, ensuring reliable delivery for your industrial hydraulic needs.
How to install a PARKER O-ring face seal compression fitting?
To install a PARKER Seal-Lok fitting, ensure the tube end is clean and deburred. Insert the tube fully into the fitting, then tighten the nut to the manufacturer's recommended torque. Always verify the O-ring is seated properly before pressurizing the system.
Used in
Common applications for PARKERPARKER Products
3G Electric supplies PARKER o-ring face seal steel compression fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









