We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Ten brass push-fit male adapters 8 mm to 3/8 NPT

Legris

Legris 3101 08 17 Male Adapter 8mm x 3/8 NPT Pack of 10

SKU CH-6GQR-TQ8C0 MPN 3101

Connects 8 mm push-fit tubing to a 3/8 inch NPT thread, rated to 290 psi and 175 °F, pack of 10

  • TypeDrain Components
  • MaterialHAWA
  • Push-to-connect design speeds up installation
  • Brass construction handles 290 psi operating pressure
  • Rated to 175 °F for demanding environments
  • 8 mm tube to 3/8 NPT thread fits mixed systems
  • Pack of 10 covers multiple connection points

8 mm Push-Fit Male Adapter

This pack of ten Legris 3101 adapters connects an 8 mm tube to a 3/8 inch male BSPP thread using a push-to-connect design. It suits vacuum and fluid lines where quick assembly and disassembly are required. The brass body resists corrosion in typical workshop and automotive environments. Each fitting arrives ready to install without separate thread sealant.

Thermals Noise and Power Draw

These are passive brass fittings with no moving parts, electrical draw or active cooling. They add no audible noise and generate no heat beyond the temperature of the fluid passing through. The maximum operating temperature is 175 degrees F and the maximum operating pressure is 290 psi. Performance stays within those limits as long as the tubing and thread engagement are correct.

Upgrade Path and Compatibility

The adapters replace compression or barbed fittings on 8 mm lines that need a 3/8 inch BSPP port connection. The jump is worthwhile when faster tool-free changes outweigh the cost of push-fit hardware. They do not suit metric parallel threads, NPT ports or larger tube diameters without additional adapters. Buyers needing a different thread form or tube size must select another fitting.

Highlights

  • Push-to-connect design speeds up installation
  • Brass construction handles 290 psi operating pressure
  • Rated to 175 °F for demanding environments
  • 8 mm tube to 3/8 NPT thread fits mixed systems
  • Pack of 10 covers multiple connection points

Specifications

TypeDrain Components
MaterialHAWA
BrandLegris
Model3101 08 17

Questions about this item

How do I install the 8 mm push-to-connect side onto tubing and what step do people miss?

Cut the 8 mm tube square, deburr the edge, then push it straight into the fitting until it bottoms out; the step most skip is verifying the tube cannot be pulled back by hand.

What maintenance or replacement will the brass body and pre-applied sealant need later?

Inspect threads and the tube seal annually; replace the adapter if the brass shows dezincification, the sealant has washed out, or the collet no longer grips the 8 mm tube.

Which limit appears first under sustained use — the 290 psi pressure rating or the 175 °F temperature rating?

The 175 °F temperature ceiling is reached first in hot-water or steam lines; above that the brass softens and the push-to-connect seal degrades before 290 psi is approached.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.