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HAM-LET Compression Fitting Union: 12 mm OD x 3/8 in Pipe Fitting Size - Double-Ferrule Stainless Steel Fittings
HAM-LETDouble-Ferrule Stainless Steel Fittings

HAM-LET Compression Fitting Union: 12 mm OD x 3/8 in Pipe Fitting Size

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

Brand
HAM-LET
Item
Compression Fitting Union: 12 mm OD x 3/8 in Pipe Fitting Size
Category
Double-Ferrule Stainless Steel Fittings
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Technical Specifications

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

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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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