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

3G Electric
HAM-LET Let-Lok Double-Ferrule Compression Fitting Plug - Double-Ferrule Stainless Steel Fittings
HAM-LETDouble-Ferrule Stainless Steel Fittings

HAM-LET Let-Lok Double-Ferrule Compression Fitting Plug

The HAM-LET Compression Fitting Plug is a double-ferrule stainless steel fitting from the Let-Lok series, designed for 1/2 in OD fitting size (MPN 7121L SS 1/2). It is compatible with Parker fitting brands, providing…

SKU 3G-OTH-471693

Also listed as: 7121LSS12 · 7121L SS 1 2 · 7121L-SS-1-2

Brand
HAM-LET
Item
Let-Lok Double-Ferrule Compression Fitting Plug
Part Number
7121L SS 1/2
Category
Double-Ferrule Stainless Steel Fittings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HAM-LET
Manufacturer Part Number
7121L SS 1/2
Series
Let-Lok
Type
Compression, Stainless Steel
Compatible Fitting Brands
Parker

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 Plug is a double-ferrule stainless steel fitting from the Let-Lok series, designed for 1/2 in OD fitting size (MPN 7121L SS 1/2). It is compatible with Parker fitting brands, providing a reliable sealing solution for industrial tubing systems.

Frequently Asked Questions

What is HAM-LET Compression Fitting Plug used for?

The HAM-LET Compression Fitting Plug seals the end of a tubing system in industrial applications such as instrumentation, chemical processing, and hydraulic lines. Its double-ferrule design provides a leak-tight connection for 1/2 in OD tubing, ensuring reliable performance under pressure.

What are the specifications of HAM-LET 7121L SS 1/2?

The HAM-LET 7121L SS 1/2 is a double-ferrule compression fitting plug from the Let-Lok series. It fits 1/2 in OD tubing, is made of stainless steel, and is compatible with Parker fitting brands. The manufacturer part number is 7121L SS 1/2.

Where to buy HAM-LET compression fittings in worldwide?

3G Electric supplies HAM-LET compression fittings worldwide, handling logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine HAM-LET parts like the 7121L SS 1/2 plug and coordinate international shipping for procurement teams.

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

To install the HAM-LET double-ferrule plug, insert the tubing fully into the fitting, then tighten the nut to the manufacturer's recommended torque. The front ferrule grips the tube while the back ferrule creates a seal. Always follow generic best practices for compression fittings 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
Not sure this is the right part? Photo-identify it

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
This HAM-LET double-ferrule stainless steel compression fitting elbow provides a 90-degree turn in tubing systems. With 6 mm OD compression connections on both ends, it is suited for industrial fluid handling and instrumentation lines requiring leak-tight joints
HAM-LET
This HAM-LET double-ferrule stainless steel compression fitting elbow provides a 90-degree turn in tubing systems. With 6 mm OD compression connections on both ends, it is suited for industrial fluid handling and instrumentation lines requiring leak-tight joints
Double-ferrule stainless steel compression elbow fitting with 6 mm OD tube size and 1/4 in male NPT pipe thread. Creates a leak-tight 90-degree connection in fluid systems. Compatible with Swagelok fittings
HAM-LET
Double-ferrule stainless steel compression elbow fitting with 6 mm OD tube size and 1/4 in male NPT pipe thread. Creates a leak-tight 90-degree connection in fluid systems. Compatible with Swagelok fittings
This double-ferrule stainless steel union connects two tubes of the same outer diameter in a straight line, forming a leak-tight seal. It is used in industrial fluid and gas systems requiring vibration-resistant connections, such as instrumentation and process lines. Compatible with Swagelok fitting brands
HAM-LET
This double-ferrule stainless steel union connects two tubes of the same outer diameter in a straight line, forming a leak-tight seal. It is used in industrial fluid and gas systems requiring vibration-resistant connections, such as instrumentation and process lines. Compatible with Swagelok fitting brands
This HAM-LET Let-Lok double-ferrule stainless steel fitting connects 1/8 in OD tubing to a 1/8 in male NPT thread. It is used in industrial fluid systems requiring leak-free sealing, such as instrumentation and pneumatic lines. Compatible with Parker A-LOK fittings
HAM-LET
This HAM-LET Let-Lok double-ferrule stainless steel fitting connects 1/8 in OD tubing to a 1/8 in male NPT thread. It is used in industrial fluid systems requiring leak-free sealing, such as instrumentation and pneumatic lines. Compatible with Parker A-LOK fittings
Tube x FNPT adapter from the Let-Lok series. Connects 1/4 in OD tubing to a 1/8 in female NPT port. Double-ferrule design provides a leak-tight seal in instrumentation, hydraulic, and pneumatic systems
HAM-LET
Tube x FNPT adapter from the Let-Lok series. Connects 1/4 in OD tubing to a 1/8 in female NPT port. Double-ferrule design provides a leak-tight seal in instrumentation, hydraulic, and pneumatic systems
This double-ferrule stainless steel fitting connects 6 mm OD tubing to a 1/4 in MBSPP threaded port. The compression x MBSPP configuration is used in industrial fluid systems for leak-tight, vibration-resistant joints in instrumentation, hydraulic, and pneumatic lines
HAM-LET
This double-ferrule stainless steel fitting connects 6 mm OD tubing to a 1/4 in MBSPP threaded port. The compression x MBSPP configuration is used in industrial fluid systems for leak-tight, vibration-resistant joints in instrumentation, hydraulic, and pneumatic lines
This HAM-LET Let-Lok adapter is a double-ferrule stainless steel tube fitting with a Tube x MNPT configuration. It connects 3/8 in OD tubing to a 1/4 in male NPT pipe thread, providing a leak-tight seal in instrumentation, hydraulic, and process systems. The double-ferrule design offers vibration resistance. Compatible with Parker A-LOK fittings
HAM-LET
This HAM-LET Let-Lok adapter is a double-ferrule stainless steel tube fitting with a Tube x MNPT configuration. It connects 3/8 in OD tubing to a 1/4 in male NPT pipe thread, providing a leak-tight seal in instrumentation, hydraulic, and process systems. The double-ferrule design offers vibration resistance. Compatible with Parker A-LOK fittings
Double-ferrule compression fitting nut for 7/8 in OD stainless steel tubing. Made of stainless steel, part of the Let-Lok series, and compatible with Parker A-LOK fittings. Used in industrial fluid systems for leak-tight, vibration-resistant joints in instrumentation, hydraulic, and process lines
HAM-LET
Double-ferrule compression fitting nut for 7/8 in OD stainless steel tubing. Made of stainless steel, part of the Let-Lok series, and compatible with Parker A-LOK fittings. Used in industrial fluid systems for leak-tight, vibration-resistant joints in instrumentation, hydraulic, and process lines

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first