13/32" 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
1/2"	PTFE Plastic	5182K977	00000

Sleeves for 37° Flared Fittings for Stainless Steel Tubing

For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
Temperature Range: -420° to 1,200° F
Tubing: Use with seamless or welded 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
Specifications Met: ISO 8434, SAE J514

Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.

For Tube OD
Inch	Sleeve Material		Each
Inch
1/4"	316 Stainless Steel	50715K316	00000

Sleeves for Precision AN 37° Flared Fittings for Stainless Steel Tubing

For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: -320° to 1200° F
Tubing: Use with seamless 304 or 316 stainless steel
Specifications Met: See Table

Use these sleeves with precision AN nuts and fittings to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. They are also known as ferrules.

304 stainless steel sleeves have very good corrosion resistance. 316 stainless steel sleeves have excellent corrosion resistance.

304 Stainless Steel
For Tube OD	Max. Pressure	Specifications Met		Each
1/4"	3,000 psi @ 72° F	AN819-4J, ASTM A380, MS20819, SAE AS4841, SAE AS5176	5482K82	00000
316 Stainless Steel
1/4"	3,000 psi @ 72° F	AN819-4K, ASTM A380, MS20819, SAE AS4841, SAE AS5176	5482K203	0000

Sleeves for 37° Flared Fittings for Copper Tubing

For Use With: Air, Fuel Oil, Mineral Oil, Water
Temperature Range: -40° to 400° F
Tubing: Use with seamless copper
Specifications Met: MIL-F-18866, SAE J514, ISO 8434

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

For Tube OD	Sleeve Material		Each
1/4"	360 Brass	50675K116	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.

For Tube OD
Inch	Sleeve Material	Max. Pressure		Each
Inch Sleeves
1/4"	Zinc-Plated Steel	4,500 psi @ 72° F	50695K216	00000

Sleeves for 37° Flared Fittings for Aluminum Tubing

For Use With: Air, Coolant, Gasoline, Hydraulic Fluid, Water
Temperature Range: -60° to 350° F
Tubing: Use with seamless aluminum

Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on aluminum tubing that is flared to 37°. Sleeves are aluminum, which is lightweight with good corrosion resistance. They are also known as ferrules

For Tube OD	Sleeve Material	Max. Pressure		Each
3/16"	Anodized 2024 Aluminum	3,000 psi @ 72° F	2227K95	00000
1/4"	Anodized 2024 Aluminum	3,000 psi @ 72° F	2227K71	0000

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

Acetal 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.

Acetal sleeves are softer than brass, so they won’t damage your tubing.

		Acetal Plastic Sleeves
For Tube OD	Max. Pressure	Pkg. Qty.		Pkg.
1/2"	150 psi @ 72° F	10	5053K56	00000