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

HAM-LET Let-Lok Double-Ferrule Stainless Steel Tube Fitting Adapter

The HAM-LET Compression Fitting Adapter is a double-ferrule stainless steel fitting in a Tube x MNPT configuration, with a 1/4 in OD tube size and 3/8 in pipe fitting size. Part of the Let-Lok series (MPN 739LM SS…

SKU 3G-OTH-471941

Also listed as: 739LMSS14X38 · 739LM SS 1 4 X 3 8 · 739LM-SS-1-4-X-3-8

Brand
HAM-LET
Item
Let-Lok Double-Ferrule Stainless Steel Tube Fitting Adapter
Part Number
739LM SS 1/4 X 3/8
Category
Double-Ferrule Stainless Steel Fittings
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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
739LM SS 1/4 X 3/8
Series
Let-Lok
Type
Tube x MNPT
Compatible Fitting Brands
Swagelok

Technical Documents

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

Product Description

The HAM-LET Compression Fitting Adapter is a double-ferrule stainless steel fitting in a Tube x MNPT configuration, with a 1/4 in OD tube size and 3/8 in pipe fitting size. Part of the Let-Lok series (MPN 739LM SS 1/4 X 3/8), it is compatible with Swagelok brands. 3G Electric interprets your demand for this OEM-specified adapter and delivers it with specialist sourcing support across 14 industrial departments.

Frequently Asked Questions

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

This HAM-LET double-ferrule stainless steel adapter connects 1/4 in OD tubing to a 3/8 in male NPT port. It is used in instrumentation, hydraulic, and pneumatic systems where leak-tight, vibration-resistant connections are required. The Let-Lok series is compatible with Swagelok brands.

What are the specifications of the HAM-LET 739LM SS 1/4 X 3/8?

The HAM-LET 739LM SS 1/4 X 3/8 is a Tube x MNPT adapter from the Let-Lok series. It has a 1/4 in OD tube size and a 3/8 in pipe fitting size. The double-ferrule design provides reliable sealing. It is compatible with Swagelok brands.

Where to buy HAM-LET compression fittings worldwide?

3G Electric supplies HAM-LET compression fittings worldwide. We interpret your demand for this OEM-specified adapter and handle full logistics, customs, and delivery to your site. Contact us for availability and lead time on this Let-Lok series part.

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

Insert the tube fully into the fitting until it bottoms on the shoulder. Tighten the nut finger-tight, then use a wrench to tighten 1-1/4 turns for 1/4 in OD tubing. This creates a leak-tight seal. Always follow the manufacturer's instructions for proper installation.

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
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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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