19 mm Ferrules | McMaster-Carr

For Use With: Air, Cutting Oil, Diesel Fuel, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Lubricants, Mineral Oil, Natural Gas, Steam, Water
Temperature Range: -75° to 550° F
Tubing: Use with copper
Specifications Met: DIN 3870

Create a strong seal on copper tubing when you couple these nuts with compression sleeves and fittings. Made of nickel-plated brass, they resist corrosion better than plain brass. All meet DIN 3870, which is an international standard for tube fitting dimensions.

For Tube
OD, mm	Wall Thickness, mm	Nut Material	Maximum Pressure	Length, mm		Each
Short Nuts
14	1	Nickel-Plated Brass	1,000 psi @ 72° F	19	7903N134	00000

Sleeves for 37° Flared Fittings for Steel Tubing

For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
Temp. Range: -60° to 400° F
Tubing: Use with seamless steel
Specifications Met: SAE J514

Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on steel tubing that is flared to 37°. Sleeves are zinc-plated steel for fair corrosion resistance. They are also known as ferrules.

Inch × metric sleeve adapters convert the fitting from inch to metric.

For Tube OD
Inch	Metric, mm	Sleeve Material	Max. Pressure		Each
Inch × Metric Sleeve Adapters
7/8"	20	Zinc-Plated Steel	2,500 psi @ 72° F	50695K119	000000