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Ten brass 90-degree elbows with 4 mm compression and 1/8 in BSPT threads

Legris

Legris 0109 4 mm compression x 1/8 in BSPT brass 90° elbow 10 pack

SKU CH-B3N6-62HZW

Pack of ten brass 90-degree elbows joining 4 mm compression to 1/8 in BSPT, rated to 335 psi and 250 °F

  • 4 mm compression connects metric tubing easily
  • 1/8 in BSPT male thread fits standard ports
  • 90 degree elbow routes lines in tight spaces
  • Brass CA360 withstands 335 psi and 250 °F
  • Pack of 10 fittings ready for multiple installs

Brass compression elbow for 4 mm tube

This Legris 0109 fitting connects a 4 mm outer-diameter tube to a 1/8 inch BSPT male thread at a 90 degree angle. The brass body is rated for 3,335 psi and 250 degrees Fahrenheit. Supplied as a pack of ten, it suits hydraulic and chemical transfer lines where a compact right-angle joint is required.

Replaces separate elbow and straight adapter

Using this single 90 degree compression elbow removes the need to couple a straight compression fitting with a threaded street elbow. The jump is worth it when panel space is tight, when fewer potential leak paths matter, or when assembly time must be kept short on production or maintenance jobs.

Push-on compression install with spanner flats

Slide the nut and olive onto the tube, insert the tube fully into the body, then tighten the nut until resistance rises sharply — typically one and a half turns past hand tight. Common issues are under-tightening, which weeps under pressure, or over-tightening, which can distort the olive on soft tubing. Verify the thread is 1/8 inch BSPT before assembly.

Highlights

  • 4 mm compression connects metric tubing easily
  • 1/8 in BSPT male thread fits standard ports
  • 90 degree elbow routes lines in tight spaces
  • Brass CA360 withstands 335 psi and 250 °F
  • Pack of 10 fittings ready for multiple installs

Specifications

BrandLEGRIS

Questions about this item

What tube diameter does the 4 mm compression end of this Legris 0109 elbow accept?

The compression end is sized for 4 mm outer-diameter tubing and seals with a standard compression ferrule and nut.

How do you correctly install the R 1/8 BSPT thread side into a port?

Apply PTFE tape or thread sealant on the male BSPT threads, then tighten until the joint is snug and leak-free without over-torquing the brass body.

When should the brass elbow be replaced in a system running near its 335 psi or 250 °F limits?

Inspect regularly for stress cracking, thread deformation or compression-nut wear; replace at any sign of leakage, corrosion or after a pressure-cycle event that exceeds rated limits.

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