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HAM-LET Let-Lok Double-Ferrule Stainless Steel Tube x FNPT Adapter - Double-Ferrule Stainless Steel Fittings
HAM-LETDouble-Ferrule Stainless Steel Fittings

HAM-LET Let-Lok Double-Ferrule Stainless Steel Tube x FNPT Adapter

The HAM-LET Let-Lok Series 770L SS 5/16X 1/4 is a double-ferrule stainless steel compression fitting adapter, configured as a 5/16 in OD tube x 1/4 in FNPT pipe fitting. It is compatible with Parker A-LOK fittings…

SKU 3G-OTH-472113

Also listed as: 770LSS516X14 · 770L SS 5 16X 1 4 · 770L-SS-5-16X-1-4

Brand
HAM-LET
Item
Let-Lok Double-Ferrule Stainless Steel Tube x FNPT Adapter
Category
Double-Ferrule Stainless Steel Fittings
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HAM-LET
Manufacturer Part Number
770L SS 5/16X 1/4
Series
Let-Lok
Type
Tube x FNPT
Compatible Fitting Brands
Parker A-LOK

Technical Documents

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HAM-LET Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HAM-LET Let-Lok Series 770L SS 5/16X 1/4 is a double-ferrule stainless steel compression fitting adapter, configured as a 5/16 in OD tube x 1/4 in FNPT pipe fitting. It is compatible with Parker A-LOK fittings, providing a reliable connection for industrial tubing systems.

Frequently Asked Questions

What is a HAM-LET Let-Lok compression fitting adapter used for?

The HAM-LET Let-Lok 770L SS adapter connects 5/16 in OD tubing to a 1/4 in FNPT threaded port. It is used in industrial instrumentation, hydraulic, and pneumatic systems where a leak-tight, vibration-resistant joint is required. The double-ferrule design ensures reliable sealing in high-pressure tubing applications.

What are the specifications of the HAM-LET 770L SS 5/16X 1/4?

This HAM-LET Let-Lok adapter is a double-ferrule stainless steel compression fitting with a 5/16 in OD tube end and a 1/4 in FNPT pipe thread. It is compatible with Parker A-LOK fittings. The series is Let-Lok, and the manufacturer part number is 770L SS 5/16X 1/4.

Where to buy HAM-LET compression fittings worldwide?

3G Electric supplies HAM-LET Let-Lok compression fittings and adapters to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the 770L SS 5/16X 1/4 or other HAM-LET series.

How to install a HAM-LET double-ferrule compression fitting?

To install a HAM-LET Let-Lok double-ferrule fitting, insert the tube fully into the fitting until it bottoms against the shoulder. Tighten the nut finger-tight, then use a wrench to tighten 1-1/4 turns for tube sizes up to 1/2 in. Always follow the manufacturer's torque specifications for leak-free performance.

Used in

Common applications for HAM-LET
Oil and gas — HAM-LET H99 Series needle valves for instrument isolation in high-pressure lines
Chemical processing — HAM-LET H-400 Series check valves for backflow prevention in corrosive fluid systems
Semiconductor manufacturing — HAM-LET EVZS4R-BV diaphragm valves for ultra-high-purity gas distribution
Power generation — HAM-LET H-6800 Series three-way ball valves for cooling water flow switching
Analytical instrumentation — HAM-LET H300U Series metering valves for precise flow regulation in lab gas systems
Hydraulic systems — HAM-LET H-410 Series poppet check valves for load-holding in hydraulic circuits

HAM-LET Products

3G Electric supplies HAM-LET double-ferrule stainless steel fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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