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: 3/4 in OD x 1/2 in Pipe Fitting Size - Double-Ferrule Stainless Steel Fittings
HAM-LETDouble-Ferrule Stainless Steel Fittings

HAM-LET Compression Fitting Adapter: 3/4 in OD x 1/2 in Pipe Fitting Size

The HAM-LET Let-Lok Double-Ferrule Stainless Steel Fitting is a compression fitting adapter with a 3/4 in OD tube x 1/2 in FNPT pipe fitting size (MPN 770L SS 3/4 X 1/2). It is compatible with Swagelok fitting brands.

SKU 3G-OTH-471622

Brand
HAM-LET
Item
Compression Fitting Adapter: 3/4 in OD x 1/2 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
770L SS 3/4 X 1/2
Series
Let-Lok
Type
Tube x FNPT
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 Let-Lok Double-Ferrule Stainless Steel Fitting is a compression fitting adapter with a 3/4 in OD tube x 1/2 in FNPT pipe fitting size (MPN 770L SS 3/4 X 1/2). It is compatible with Swagelok fitting brands.

Frequently Asked Questions

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

This HAM-LET Let-Lok double-ferrule stainless steel fitting connects 3/4 in OD tubing to a 1/2 in FNPT port, creating a leak-tight seal in high-pressure instrumentation, chemical, and hydraulic systems. It is compatible with Swagelok brands and is widely used in process industries requiring reliable tube-to-pipe transitions.

What are the specifications of the HAM-LET 770L SS 3/4 X 1/2 compression fitting?

The HAM-LET 770L SS 3/4 X 1/2 is a Let-Lok series double-ferrule stainless steel fitting with a 3/4 in OD tube size and 1/2 in FNPT pipe connection. It is compatible with Swagelok brands and designed for high-integrity sealing in demanding industrial applications.

Where to buy HAM-LET compression fittings worldwide?

3G Electric supplies HAM-LET Let-Lok compression fittings, including the 770L SS 3/4 X 1/2, to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other industrial components across 14 departments.

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, hand-tighten the nut, then use a wrench to tighten 1-1/4 turns past finger-tight for 3/4 in OD tubing. Always follow manufacturer guidelines and use proper tube support to avoid leaks. This fitting is compatible with Swagelok tools.

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 Adapter: 16 mm OD x 3/8 in Pipe Fitting Size, Compression x MNPT (MPN 768L SS 16MMX 3/8). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Adapter: 16 mm OD x 3/8 in Pipe Fitting Size, Compression x MNPT (MPN 768L SS 16MMX 3/8). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Elbow: 6 mm OD x 1/4 in Pipe Fitting Size, Compression x MNPT (MPN 769L-SS-6MM X 1/4). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Elbow: 6 mm OD x 1/4 in Pipe Fitting Size, Compression x MNPT (MPN 769L-SS-6MM X 1/4). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Ferrule: 1 in OD Fitting Size, Compression, Stainless Steel (MPN 760LF SS 1). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Ferrule: 1 in OD Fitting Size, Compression, Stainless Steel (MPN 760LF SS 1). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 3/4 in OD x 3/4 in Pipe Fitting Size, Tube x ORB (MPN 768LOB SS 3/4 X 3/4-16). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET; Fitting Size: 3/4 in OD x 3/4 in Pipe.
HAM-LET
HAM-LET Compression Fitting Adapter: 3/4 in OD x 3/4 in Pipe Fitting Size, Tube x ORB (MPN 768LOB SS 3/4 X 3/4-16). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET; Fitting Size: 3/4 in OD x 3/4 in Pipe.
HAM-LET Compression Fitting Adapter: 5/16 in OD x 3/8 in OD Fitting Size, Tube x Tube (MPN 767LT SS 5/16X 3/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Adapter: 5/16 in OD x 3/8 in OD Fitting Size, Tube x Tube (MPN 767LT SS 5/16X 3/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 1/8 in OD x 1/8 in Pipe Fitting Size, Tube x FNPT (MPN 770L SS 1/8 X 1/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Adapter: 1/8 in OD x 1/8 in Pipe Fitting Size, Tube x FNPT (MPN 770L SS 1/8 X 1/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 1/8 in OD x 1/8 in Pipe Fitting Size, Tube x MNPT (MPN 769L SS 1/8 X 1/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Adapter: 1/8 in OD x 1/8 in Pipe Fitting Size, Tube x MNPT (MPN 769L SS 1/8 X 1/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Elbow: 1/4 in OD x 1/4 in OD Fitting Size, Compression x Compression (MPN 765L SS 1/4). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET
HAM-LET Compression Fitting Elbow: 1/4 in OD x 1/4 in OD Fitting Size, Compression x Compression (MPN 765L SS 1/4). Key specifications — Compatible Fitting Brands: Swagelok; Brand: HAM-LET.