Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

HAM-LET Let-Lok 770L SS 1 X 1 Double-Ferrule Tube x FNPT Adapter - Double-Ferrule Stainless Steel Fittings
HAM-LETDouble-Ferrule Stainless Steel Fittings

HAM-LET Let-Lok 770L SS 1 X 1 Double-Ferrule Tube x FNPT Adapter

The HAM-LET Let-Lok Series 770L SS 1 X 1 is a double-ferrule stainless steel compression fitting adapter with a 1 in OD tube x 1 in FNPT pipe fitting size. It is compatible with Parker A-LOK fitting brands, providing…

SKU 3G-OTH-471821

Also listed as: 770LSS1X1 · 770L-SS-1-X-1

Brand
HAM-LET
Item
Let-Lok 770L SS 1 X 1 Double-Ferrule Tube x FNPT Adapter
Category
Double-Ferrule Stainless Steel Fittings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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 1 X 1
Series
Let-Lok
Type
Tube x FNPT, Stainless Steel
Compatible Fitting Brands
Parker A-LOK

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The HAM-LET Let-Lok Series 770L SS 1 X 1 is a double-ferrule stainless steel compression fitting adapter with a 1 in OD tube x 1 in FNPT pipe fitting size. It is compatible with Parker A-LOK fitting brands, 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 1 X 1 adapter connects 1 in OD tubing to a 1 in FNPT threaded port in industrial fluid or gas systems. Its double-ferrule design provides a leak-tight, vibration-resistant seal, commonly used in instrumentation, chemical processing, and hydraulic applications.

What are the specifications of the HAM-LET 770L SS 1 X 1?

This HAM-LET Let-Lok adapter has a 1 in OD tube x 1 in FNPT pipe fitting size, made of stainless steel. It is part of the 770L series and is compatible with Parker A-LOK fittings. The double-ferrule design ensures reliable sealing in high-pressure tubing systems.

Where to buy HAM-LET compression fittings worldwide?

3G Electric supplies HAM-LET Let-Lok compression fittings like the 770L SS 1 X 1 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this stainless steel adapter.

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

To install the HAM-LET Let-Lok adapter, slide the nut and ferrules onto the tube, insert the tube fully into the fitting body, then tighten the nut by hand. Use a wrench to tighten an additional 1-1/4 turns for proper ferrule bite. Always follow manufacturer torque guidelines for leak-free connections.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from HAM-LET

View all HAM-LET parts
This double-ferrule stainless steel compression union connects tubing of 12 mm OD and 1/2 in OD in a compression x compression configuration. It is compatible with Swagelok fitting brands and provides a leak-tight seal for industrial tubing systems
HAM-LET
This double-ferrule stainless steel compression union connects tubing of 12 mm OD and 1/2 in OD in a compression x compression configuration. It is compatible with Swagelok fitting brands and provides a leak-tight seal for industrial tubing systems
This double-ferrule stainless steel fitting from the HAM-LET Let-Lok series connects tubes of 1/4 in OD and 1/2 in OD in a tube x tube configuration. It is compatible with Parker A-LOK fittings and is used in industrial fluid and gas systems requiring leak-tight, vibration-resistant joints
HAM-LET
This double-ferrule stainless steel fitting from the HAM-LET Let-Lok series connects tubes of 1/4 in OD and 1/2 in OD in a tube x tube configuration. It is compatible with Parker A-LOK fittings and is used in industrial fluid and gas systems requiring leak-tight, vibration-resistant joints
This double-ferrule compression tee fitting is made of stainless steel and has 20 mm OD tube connections on all three ports. It creates a leak-tight branch connection in tubing systems, suitable for instrumentation, chemical processing, and hydraulic lines. Compatible with Swagelok fitting brands
HAM-LET
This double-ferrule compression tee fitting is made of stainless steel and has 20 mm OD tube connections on all three ports. It creates a leak-tight branch connection in tubing systems, suitable for instrumentation, chemical processing, and hydraulic lines. Compatible with Swagelok fitting brands
This double-ferrule compression fitting adapter is made of stainless steel and is part of the Let-Lok series. It connects 5/8 in OD tube to 5/8 in OD tube and 5/8 in pipe. Compatible with Swagelok fittings, it is used in industrial tubing systems for leak-tight, vibration-resistant joints
HAM-LET
This double-ferrule compression fitting adapter is made of stainless steel and is part of the Let-Lok series. It connects 5/8 in OD tube to 5/8 in OD tube and 5/8 in pipe. Compatible with Swagelok fittings, it is used in industrial tubing systems for leak-tight, vibration-resistant joints
This double-ferrule stainless steel compression union connects 12 mm OD and 3/8 in OD tubing. It features a compression x compression configuration and is compatible with Swagelok fitting brands. Used in industrial fluid systems for leak-tight, vibration-resistant joints
HAM-LET
This double-ferrule stainless steel compression union connects 12 mm OD and 3/8 in OD tubing. It features a compression x compression configuration and is compatible with Swagelok fitting brands. Used in industrial fluid systems for leak-tight, vibration-resistant joints
This HAM-LET Let-Lok series double-ferrule compression fitting adapter connects 1 in OD tubing to a 1 in female NPT port. Made of stainless steel, it provides leak-tight seals in industrial fluid systems. Compatible with Parker A-LOK fittings for secure connections
HAM-LET
This HAM-LET Let-Lok series double-ferrule compression fitting adapter connects 1 in OD tubing to a 1 in female NPT port. Made of stainless steel, it provides leak-tight seals in industrial fluid systems. Compatible with Parker A-LOK fittings for secure connections
This double-ferrule compression fitting from HAM-LET's Let-Lok series is designed for 1/4 in OD tubing. Made of stainless steel, it provides a leak-tight seal in industrial instrumentation and fluid systems. Compatible with Swagelok fittings. Sold in a 10-pack
HAM-LET
This double-ferrule compression fitting from HAM-LET's Let-Lok series is designed for 1/4 in OD tubing. Made of stainless steel, it provides a leak-tight seal in industrial instrumentation and fluid systems. Compatible with Swagelok fittings. Sold in a 10-pack
This HAM-LET compression fitting nut is a stainless steel double-ferrule component for 6 mm OD tubing, part of the Let-Lok series. It is compatible with Parker A-LOK fittings and is used in industrial fluid systems to create secure, leak-free connections in applications such as chemical, petrochemical, and instrumentation
HAM-LET
This HAM-LET compression fitting nut is a stainless steel double-ferrule component for 6 mm OD tubing, part of the Let-Lok series. It is compatible with Parker A-LOK fittings and is used in industrial fluid systems to create secure, leak-free connections in applications such as chemical, petrochemical, and instrumentation