

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The LEGRIS 3693 04 10 is a push-to-connect tube fitting with a male BSPP thread configuration, designed for fast, tool-free tube connections in pneumatic and fluid systems. Built from nickel-plated brass, it handles both liquid and gas service up to 435 psi working pressure. The fitting accepts a 4 mm outside diameter tube and operates across a wide temperature range, from -4 degrees F to 302 degrees F. It is installed by plumbers, pipefitters, and pneumatic system technicians working on compressed air lines, hydraulic circuits, and general fluid conveyance applications.
This fitting is suited for light industrial, commercial, and OEM fluid handling systems where a reliable push-to-connect interface is needed at a male BSPP threaded port. The 1/8 inch BSPP thread makes it compatible with metric and British-standard ported components commonly found in European-spec equipment. Its FKM O-ring seals support compatibility with a broad range of liquids and gases, making it a practical choice in mixed-fluid environments.
Designed as an OEM-style replacement or direct-install fitting for pneumatic and fluid systems using 4 mm outside diameter tubing with 1/8 inch BSPP male-ported connections.
Installation is performed by qualified plumbers, pipefitters, or pneumatic system technicians. Depressurize and isolate the line completely before removing or installing any fitting. Verify that the mating port thread is BSPP and not NPT, as these thread forms are not interchangeable despite similar sizing. Confirm tube outside diameter is 4 mm before insertion to ensure a proper seal.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!