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HAM-LET Compression Fitting Plug: 3 mm OD Fitting Size, Compression - Double-Ferrule Stainless Steel Fittings
HAM-LETDouble-Ferrule Stainless Steel Fittings

HAM-LET Compression Fitting Plug: 3 mm OD Fitting Size, Compression

The HAM-LET Compression Fitting Plug (MPN 7121L SS 3 MM) is a double-ferrule stainless steel fitting for 3 mm OD tubing. It is compatible with Swagelok brand fittings, enabling reliable sealing in instrumentation and…

SKU 3G-OTH-471555

Brand
HAM-LET
Item
Compression Fitting Plug: 3 mm OD Fitting Size, Compression
Category
Double-Ferrule Stainless Steel Fittings
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Technical Specifications

HAM-LET
Manufacturer Part Number
7121L SS 3 MM
Type
Compression, Stainless Steel
Compatible Fitting Brands
Swagelok
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HAM-LET Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HAM-LET Compression Fitting Plug (MPN 7121L SS 3 MM) is a double-ferrule stainless steel fitting for 3 mm OD tubing. It is compatible with Swagelok brand fittings, enabling reliable sealing in instrumentation and process systems.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

A HAM-LET compression fitting plug seals the end of a 3 mm OD tube in instrumentation and process systems. It is compatible with Swagelok brand fittings and provides reliable leak-tight sealing in high-pressure fluid or gas lines.

What are the specifications of the HAM-LET 7121L SS 3 MM plug?

The HAM-LET 7121L SS 3 MM is a double-ferrule compression fitting plug for 3 mm OD tubing. It is made of stainless steel and is compatible with Swagelok brand fittings. The part number is 7121L SS 3 MM.

Where to buy HAM-LET compression fittings worldwide?

3G Electric supplies HAM-LET compression fittings worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the 7121L SS 3 MM plug.

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 for 3 mm OD tubing. Always follow the manufacturer's instructions for proper ferrule seating and leak-free performance.

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 Cap: 10 mm OD Fitting Size, Compression, Stainless Steel (MPN 7108L-SS-10MM). Key specifications — Series: LETLOK; Compatible Fitting Brands: Let-Lok; Brand: HAM-LET.
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HAM-LET Compression Fitting Cap: 10 mm OD Fitting Size, Compression, Stainless Steel (MPN 7108L-SS-10MM). Key specifications — Series: LETLOK; Compatible Fitting Brands: Let-Lok; Brand: HAM-LET.
HAM-LET Compression Tee Fitting: 3/8 in OD x 3/8 in OD x 3/8 in Pipe Fitting Size, Stainless Steel (MPN 772L SS 3/8 X 3/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
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HAM-LET Compression Tee Fitting: 3/8 in OD x 3/8 in OD x 3/8 in Pipe Fitting Size, Stainless Steel (MPN 772L SS 3/8 X 3/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Tee Fitting: 12 mm OD x 12 mm OD x 12 mm OD Fitting Size, Stainless Steel (MPN 764L-SS-12MM). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
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HAM-LET Compression Tee Fitting: 12 mm OD x 12 mm OD x 12 mm OD Fitting Size, Stainless Steel (MPN 764L-SS-12MM). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Fitting Elbow: 1/2 in OD x 3/8 in Pipe Fitting Size, Compression x MNPT (MPN 769L SS 1/2 X 3/8). Key specifications — Compatible Fitting Brands: Let-Lok; Brand: HAM-LET.
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HAM-LET Compression Fitting Elbow: 1/2 in OD x 3/8 in Pipe Fitting Size, Compression x MNPT (MPN 769L SS 1/2 X 3/8). Key specifications — Compatible Fitting Brands: Let-Lok; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 3/8 in OD x 1/4 in Pipe Fitting Size, Tube x MNPT (MPN 774LM SS 3/8 X 1/4). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET.
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HAM-LET Compression Fitting Adapter: 3/8 in OD x 1/4 in Pipe Fitting Size, Tube x MNPT (MPN 774LM SS 3/8 X 1/4). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET.
HAM-LET Compression Fitting Adapter: 1/2 in OD x 1/4 in OD Fitting Size, Tube x Tube (MPN 763L SS 1/2 X 1/4). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
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HAM-LET Compression Fitting Adapter: 1/2 in OD x 1/4 in OD Fitting Size, Tube x Tube (MPN 763L SS 1/2 X 1/4). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Swagelok; Brand: HAM-LET.
HAM-LET Compression Tee Fitting: 3/8 in OD x 1/4 in OD x 3/8 in OD Fitting Size, Tube x Tube x Tube (MPN 764LR SS 3/8 X 1/4X 3/8). Key specifications — Series: Let-Lok; Compatible Fitting Brands: Parker A-LOK; Brand: HAM-LET.
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