We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

HAM-LET 774LM SS 12MMX 3/8 Double-Ferrule Stainless Steel Compression Fitting - Double-Ferrule Stainless Steel Fittings
HAM-LETDouble-Ferrule Stainless Steel Fittings

HAM-LET 774LM SS 12MMX 3/8 Double-Ferrule Stainless Steel Compression Fitting

The HAM-LET Compression Fitting Union is a double-ferrule stainless steel fitting with a 12 mm OD x 3/8 in pipe fitting size, configured as Compression x MNPT (MPN 774LM SS 12MMX 3/8). It is compatible with Swagelok…

SKU 3G-OTH-471343

Also listed as: 774LMSS12MMX38 · 774LM SS 12MMX 3 8 · 774LM-SS-12MMX-3-8

Brand
HAM-LET
Item
774LM SS 12MMX 3/8 Double-Ferrule Stainless Steel Compression Fitting
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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

HAM-LET
Manufacturer Part Number
774LM SS 12MMX 3/8
Type
Compression x MNPT
Compatible Fitting Brands
Swagelok

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 Compression Fitting Union is a double-ferrule stainless steel fitting with a 12 mm OD x 3/8 in pipe fitting size, configured as Compression x MNPT (MPN 774LM SS 12MMX 3/8). It is compatible with Swagelok fitting brands, ensuring reliable connections in industrial tubing systems.

Frequently Asked Questions

What is a HAM-LET compression fitting union used for?

A HAM-LET compression fitting union connects two tubes or a tube to a threaded port in industrial tubing systems. Its double-ferrule design provides a leak-tight seal, making it suitable for instrumentation, hydraulic, and process lines where reliable connections are critical.

What are the specifications of the HAM-LET 774LM SS 12MMX 3/8?

This HAM-LET compression fitting union has a 12 mm OD tube size and 3/8 in MNPT thread, type Compression x MNPT. It is made of stainless steel with double-ferrule construction and is compatible with Swagelok fitting brands for secure connections.

Where to buy HAM-LET compression fittings in worldwide?

3G Electric supplies HAM-LET compression fittings worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver the 774LM SS 12MMX 3/8 union and other HAM-LET parts to your facility, regardless of location.

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

To install a HAM-LET double-ferrule fitting, insert the tube fully into the fitting body, hand-tighten the nut, then use a wrench to tighten 1-1/4 turns past hand-tight. Always follow manufacturer guidelines for torque and tube preparation to ensure a leak-free seal.

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
Compression fitting elbow for connecting two 4 mm OD tubes at a 90-degree angle. Constructed with double-ferrule stainless steel design for leak-tight sealing in instrumentation, hydraulic, or pneumatic systems. Compatible with Swagelok systems
HAM-LET
Compression fitting elbow for connecting two 4 mm OD tubes at a 90-degree angle. Constructed with double-ferrule stainless steel design for leak-tight sealing in instrumentation, hydraulic, or pneumatic systems. Compatible with Swagelok systems
Double-ferrule compression cross fitting with four 8 mm OD ports, constructed from stainless steel. Designed to connect four tubes at a single junction in instrumentation, process control, and hydraulic systems. Compatible with Swagelok fittings
HAM-LET
Double-ferrule compression cross fitting with four 8 mm OD ports, constructed from stainless steel. Designed to connect four tubes at a single junction in instrumentation, process control, and hydraulic systems. Compatible with Swagelok fittings
This double-ferrule stainless steel tube fitting from the Let-Lok series connects 1/2 in OD tube to 3/8 in OD tube. It is compatible with Swagelok fitting brands and provides a leak-tight seal in industrial fluid systems
HAM-LET
This double-ferrule stainless steel tube fitting from the Let-Lok series connects 1/2 in OD tube to 3/8 in OD tube. It is compatible with Swagelok fitting brands and provides a leak-tight seal in industrial fluid systems
This HAM-LET Let-Lok adapter connects 5/16 in OD tubing to a 1/4 in male NPT pipe thread. It is a double-ferrule stainless steel compression fitting used in industrial fluid systems for leak-tight tube-to-pipe transitions
HAM-LET
This HAM-LET Let-Lok adapter connects 5/16 in OD tubing to a 1/4 in male NPT pipe thread. It is a double-ferrule stainless steel compression fitting used in industrial fluid systems for leak-tight tube-to-pipe transitions
Compression fitting with double-ferrule design for leak-tight connections in tubing systems. Connects 6 mm OD tube to a 3/8 in male NPT port. Suitable for instrumentation and process lines
HAM-LET
Compression fitting with double-ferrule design for leak-tight connections in tubing systems. Connects 6 mm OD tube to a 3/8 in male NPT port. Suitable for instrumentation and process lines
This double-ferrule stainless steel tube fitting from the HAM-LET Let-Lok series connects 1 in OD tube to 1 in OD tube. It is compatible with Swagelok fittings and is used in industrial tubing systems for leak-tight connections in instrumentation, chemical, and process lines
HAM-LET
This double-ferrule stainless steel tube fitting from the HAM-LET Let-Lok series connects 1 in OD tube to 1 in OD tube. It is compatible with Swagelok fittings and is used in industrial tubing systems for leak-tight connections in instrumentation, chemical, and process lines
This HAM-LET Let-Lok compression tee fitting is made of stainless steel and features a double-ferrule design for leak-tight, vibration-resistant connections. It connects three tubing lines with sizes 1/4 in OD x 1/4 in OD x 1/8 in pipe fitting. Compatible with Parker A-LOK fittings, it is suitable for instrumentation, hydraulic, and pneumatic systems
HAM-LET
This HAM-LET Let-Lok compression tee fitting is made of stainless steel and features a double-ferrule design for leak-tight, vibration-resistant connections. It connects three tubing lines with sizes 1/4 in OD x 1/4 in OD x 1/8 in pipe fitting. Compatible with Parker A-LOK fittings, it is suitable for instrumentation, hydraulic, and pneumatic systems
This HAM-LET Let-Lok Series double-ferrule stainless steel fitting is a Tube x ORB adapter, connecting 3/8 in OD tubing to a 7/16 in pipe port. It is used in industrial fluid systems for leak-free sealing in high-pressure or corrosive environments. Compatible with Swagelok brands
HAM-LET
This HAM-LET Let-Lok Series double-ferrule stainless steel fitting is a Tube x ORB adapter, connecting 3/8 in OD tubing to a 7/16 in pipe port. It is used in industrial fluid systems for leak-free sealing in high-pressure or corrosive environments. Compatible with Swagelok brands