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

3G Electric
RFQ CartGet a QuoteSign inSign up
HAM-LET Compression Fitting Adapter: 12 mm OD x 1/4 in Pipe Fitting Size - Double-Ferrule Stainless Steel Fittings
HAM-LETDouble-Ferrule Stainless Steel Fittings

HAM-LET Compression Fitting Adapter: 12 mm OD x 1/4 in Pipe Fitting Size

The HAM-LET Compression Fitting Adapter (MPN 766LG SS 12MMX 1/4) is a double-ferrule stainless steel fitting with a 12 mm OD compression end and a 1/4 in FBSPP pipe thread. It is compatible with Swagelok fittings…

SKU 3G-OTH-471344

Brand
HAM-LET
Item
Compression Fitting Adapter: 12 mm OD x 1/4 in Pipe Fitting Size
Category
Double-Ferrule Stainless Steel Fittings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

HAM-LET
Manufacturer Part Number
766LG SS 12MMX 1/4
Type
Compression x FBSPP
Compatible Fitting Brands
Swagelok
View Full Spec Sheet

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 Adapter (MPN 766LG SS 12MMX 1/4) is a double-ferrule stainless steel fitting with a 12 mm OD compression end and a 1/4 in FBSPP pipe thread. It is compatible with Swagelok fittings, enabling reliable connections in industrial fluid systems.

Frequently Asked Questions

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

A HAM-LET compression fitting adapter connects 12 mm OD tubing to a 1/4 in FBSPP threaded port in industrial fluid systems. Its double-ferrule stainless steel design provides leak-tight, vibration-resistant seals in instrumentation, chemical, and hydraulic applications.

What are the specifications of the HAM-LET 766LG SS 12MMX 1/4?

The HAM-LET 766LG SS 12MMX 1/4 is a compression x FBSPP adapter with a 12 mm OD compression end and a 1/4 in pipe thread. It is made of stainless steel with double-ferrule construction and is compatible with Swagelok fittings.

Where to buy HAM-LET compression fittings in worldwide?

3G Electric supplies HAM-LET compression fittings 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 766LG SS 12MMX 1/4 adapter.

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

Insert the tube fully into the fitting, hand-tighten the nut, then use a wrench to tighten 1-1/4 turns past finger-tight for 12 mm OD tubing. Always follow the manufacturer's instructions and use proper tube support to avoid leaks.

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 →
HAM-LET Compression Fitting Plug: 12 mm OD Fitting Size, Compression, Stainless Steel (MPN 7121L-SS-12MM). Key specifications — Series: LETLOK; Compatible Fitting Brands: Let-Lok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Plug: 12 mm OD Fitting Size, Compression, Stainless Steel (MPN 7121L-SS-12MM). Key specifications — Series: LETLOK; Compatible Fitting Brands: Let-Lok; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 1/4 in OD x 7/16 in Pipe Fitting Size, Tube x ORB (MPN 768LOB SS 1/4 X7/16-20). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET; Fitting Size: 1/4 in OD x 7/16 in Pipe.
HAM-LET
HAM-LET Compression Fitting Adapter: 1/4 in OD x 7/16 in Pipe Fitting Size, Tube x ORB (MPN 768LOB SS 1/4 X7/16-20). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET; Fitting Size: 1/4 in OD x 7/16 in Pipe.
HAM-LET Compression Fitting Adapter: 25 mm OD x 1 in Pipe Fitting Size, Compression x FNPT (MPN 766L SS 25MMX 1). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Adapter: 25 mm OD x 1 in Pipe Fitting Size, Compression x FNPT (MPN 766L SS 25MMX 1). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 14 mm OD x 14 mm OD Fitting Size, Compression x Compression (MPN 767LP SS 14MM). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Adapter: 14 mm OD x 14 mm OD Fitting Size, Compression x Compression (MPN 767LP SS 14MM). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 4 mm OD x 6 mm OD Fitting Size, Compression x Compression (MPN 767LT SS 4 MMX6 MM). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Adapter: 4 mm OD x 6 mm OD Fitting Size, Compression x Compression (MPN 767LT SS 4 MMX6 MM). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Ferrule: 8 mm OD Fitting Size, Compression, Stainless Steel (MPN 760LB-SS-8MM). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Let-Lok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Ferrule: 8 mm OD Fitting Size, Compression, Stainless Steel (MPN 760LB-SS-8MM). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Let-Lok; Brand: HAM-LET.
HAM-LET Compression Tee Fitting: 6 mm OD x 6 mm OD x 1/8 in Pipe Fitting Size, Stainless Steel (MPN 772L SS 6 MMX 1/8). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Tee Fitting: 6 mm OD x 6 mm OD x 1/8 in Pipe Fitting Size, Stainless Steel (MPN 772L SS 6 MMX 1/8). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 1/4 in OD x 9/16 in Pipe Fitting Size, Tube x ORB (MPN 768LOB SS 1/4 X9/16-18). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET; Fitting Size: 1/4 in OD x 9/16 in Pipe.
HAM-LET
HAM-LET Compression Fitting Adapter: 1/4 in OD x 9/16 in Pipe Fitting Size, Tube x ORB (MPN 768LOB SS 1/4 X9/16-18). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET; Fitting Size: 1/4 in OD x 9/16 in Pipe.