1/4" Ferrules | McMaster-Carr

For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: -65° to 350° F
Tubing: Use with firm or hard acetal plastic, EVA plastic, HDPE plastic, nylon plastic, PEEK plastic, polycarbonate plastic, polyethylene plastic, polypropylene plastic, PTFE plastic, PVC plastic, PVDF plastic, or THV plastic
Compatible With: Let-Lok, Parker A-Lok, Swagelok®

Made of plastic, these sleeves create a strong seal without damaging tubing.

For Tube OD	Sleeve Material		Each
5/16"	PTFE Plastic	5182K979	00000

Sleeves for Precision Compression Fittings for Stainless Steel Tubing

For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
Temperature Range: -420° to 1200° F
Tubing: Use with seamless or welded 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
Compatible With: Parker CPI

Use these sleeves with precision compression nuts and fittings to create a strong seal on stainless steel tubing. Made to tighter tolerances than other sleeves, these are designed for high-precision applications. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.

For Tube
OD	Wall Thick.	Max. Pressure		Each
1/4"	0.035"	4,000 psi @ 72° F	8239K273	00000
5/16"	0.035"	3,200 psi @ 72° F	8239K274	0000
3/8"	0.035"	2,600 psi @ 72° F	8239K275	0000

Sleeves for Compression Fittings for Copper Tubing

For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
Temperature Range:
Inch: -65° to 200° F
Metric: -40° to 250° F
Tubing:
Inch: Use with firm or hard (Durometer 1A-95A) nylon plastic, polyethylene plastic, polypropylene plastic, polyurethane rubber, or copper
Metric: Use with copper
Specifications Met: UL listed, except for metric fittings

Use these sleeves with compression nuts and fittings to create a strong seal on copper tubing. They are brass for good corrosion resistance. They are also known as ferrules.

For Tube
OD	Wall Thick.	Sleeve Material	Max. Pressure	Pkg. Qty.		Pkg.
1/4"	0.03"	Brass	300 psi @ 72° F	10	50915K613	00000
5/16"	0.032"	Brass	300 psi @ 72° F	10	50915K614	0000
3/8"	0.032"	Brass	200 psi @ 72° F	10	50915K615	0000

Sleeves for Precision Compression Fittings for Copper Tubing

For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
Temperature Range: -40° to 350° F
Tubing: Use with seamless copper that meets ASTM B68, ASTM B75, or ASTM B88
Compatible With: Parker CPI

Use these sleeves with precision compression nuts and fittings to create a strong seal on copper tubing. Made to tighter tolerances than other sleeves, they are designed for high-precision applications. Sleeves are brass for good corrosion resistance. They are also known as ferrules.

For Tube
OD	Wall Thick.	Sleeve Material	Max. Pressure		Each
1/8"	0.035"	Brass	2,700 psi @ 72° F	7473T192	00000
3/16"	0.035"	Brass	1,200 psi @ 72° F	7473T193	0000
1/4"	0.035"	Brass	1,200 psi @ 72° F	7473T194	0000
5/16"	0.035"	Brass	1,200 psi @ 72° F	7473T195	0000
3/8"	0.035"	Brass	1,000 psi @ 72° F	7473T196	0000

Sleeves for Vibration-Resistant Compression Fittings for Copper Tubing

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Lubricants, Mineral Oil, Water
Temperature Range: -30° to 270° F, except fluoroelastomer rubber sleeves are -15° to 450° F
Tubing: Use with copper

Use these sleeves with vibration-resistant compression nuts and fittings. They are rubber instead of metal, so they cushion the tubing and absorb vibration while creating a tight seal. They are also known as ferrules.

Buna-N Rubber
For Tube OD	Sleeve Color	Max. Pressure		Each
3/8"	Black with Green Stripe	170 psi @ 72° F	50385K74	00000
Fluoroelastomer Rubber
3/8"	Black with Red Stripe	170 psi @ 72° F	50385K84	0000

Sleeves for Brass Compression Tube Fittings for Air and Water

For Use With: Air, Lubricated Air, Water
Temperature Range: See table
Tubing: Use with firm or hard (Durometer 1A-95A or-Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
Specifications Met: SAE J512, except metric sizes

Use these sleeves with brass compression nuts and fittings to create a seal on plastic and rubber tubing.

Acetal sleeves won’t damage tubing.

For Tube		Sleeve
OD	Wall Thick.	Material	Color	Max. Pressure	Temp. Range, °F	Pkg. Qty.		Pkg.
1/2"	0.032"	Acetal Plastic	White	200 psi @ 72° F	-65° to 250°	10	50915K196	00000

Sleeves for Quick-Assembly Brass
Compression Tube Fittings for Air and Water

Brass Sleeve

Temperature Range: 0° to 150° F
Tubing: Acetal plastic sleeves: Use with (firm or hard) polyethylene plastic or polypropylene plastic
Brass sleeves: Use with (firm or hard) nylon plastic, polyethylene plastic or polypropylene plastic

Use these to replace a damaged sleeve (ferrule) in quick-assembly brass compression nuts.

Brass sleeves have better durability than plastic sleeves.

		Brass Sleeves
For Tube OD	Max. Pressure	Pkg. Qty.		Pkg.
1/2"	150 psi @ 72° F	5	5053K96	000000

Sleeves for Tight-Seal Brass Compression Tube Fittings for Air and Water

Tubing: Use with firm (Durometer 95A) EVA plastic or polyurethane rubber
Specifications Met: SAE J512
Temperature Range: -65° to 250° F

Use these sleeves with tight-seal brass compression nuts and fittings to create a seal on plastic and rubber tubing. They are acetal, so they won’t damage tubing.

	Sleeve
For Tube OD	Material	Color	Max. Pressure	Pkg. Qty.		Pkg.
1/2"	Acetal Plastic	White	90 psi @ 72° F	25	51875K46	000000

PTFE Sleeves for Yor-Lok Fittings