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Nickel-plated brass male connector with 4mm tube and BSPP thread

Legris

Legris 3601 04 56 4mm Tube x BSPP Male Connector

SKU CH-PAX1-RCXMX

Nickel-plated brass male connector joins 4 mm tube to BSPP thread, rated to 435 psi from -4 to 302 °F with 11 mm hex

  • Nickel-plated brass resists corrosion in pneumatic systems
  • 4 mm tube fits standard 5/32 in airline tubing
  • BSPP M8 male thread seals without extra sealant
  • Rated to 435 psi for high-pressure air lines
  • Operates from -4 °F to 302 °F across wide temperature range

4 mm Tube BSPP Male Connector

This nickel-plated brass fitting joins a 4 mm tube to a BSPP male thread for fluid or pneumatic circuits. The 3601 series design provides a straight connection rated for 435 psi and temperatures from -4 °F to 302 °F. An 11 mm hex allows standard spanner tightening.

Installers needing a compact 4 mm push-fit to BSPP

Technicians working with larger tube diameters or metric parallel threads other than BSPP should select a different fitting. The connector is not suited for systems exceeding the stated pressure or temperature limits. Buyers requiring alternative thread forms must choose another model.

Simple push-fit installation with an 11 mm hex

Insert the tube until it seats, then tighten the hex to secure the BSPP thread. The most common issue is insufficient tube insertion, which can cause leaks under pressure. Ensure the mating port matches the BSPP specification to avoid thread mismatch.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 70% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameLEGRIS

Questions about this item

What tube size do I need to connect to the 4 mm push-in end?

The push-in end accepts 4 mm or 5/32 in outside-diameter tubing.

Will the M8 BSPP thread seal directly into my existing 1/8 in BSPT port?

No, the male thread is M8 BSPP and requires a matching BSPP female port with a sealing washer.

How can I confirm the fitting is holding pressure after installation?

Pressurise the circuit up to 435 psi and check for leaks at the tube grip and the BSPP seal.

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