11/32" Ferrules | McMaster-Carr

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
1/8"	316 Stainless Steel	50715K417	00000
3/16"	316 Stainless Steel	50715K368	0000

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
1/8"	3,000 psi @ 72° F	AN819-2J, ASTM A380, MS20819, SAE AS4841, SAE AS5176	5482K81	00000
316 Stainless Steel
1/8"	3,000 psi @ 72° F	AN819-2K, ASTM A380, MS20819, SAE AS4841, SAE AS5176	5482K202	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
1/8"	360 Brass	50675K48	00000
3/16"	360 Brass	50675K481	0000

Sleeves for Compression Fittings for Steel Tubing

For Use With: Inch: Air, Hydraulic Fluid, Water
Metric: Hydraulic Fluid
Temperature Range: See table
Tubing: Inch: Use with welded steel
Metric: Use with seamless steel
Specifications Met: Inch: SAE J514
Metric: ISO 8434, DIN 2353

Use these sleeves with compression nuts and fittings, sometimes called bite fittings, to create a strong seal on steel tubing. They are also known as ferrules.

Zinc-plated steel sleeves have fair corrosion resistance.

For Tube OD	Sleeve Material	Max. Pressure	Temp. Range, °F		Each
1/4"	Zinc-Plated Steel	4,000 psi @ 72° F	-65° to 400°	52215K505	00000
5/16"	Zinc-Plated Steel	4,000 psi @ 72° F	-65° to 400°	52215K507	0000

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
1/8"	Zinc-Plated Steel	5,000 psi @ 72° F	50695K27	00000
3/16"	Zinc-Plated Steel	1,250 psi @ 72° F	50695K11	000

Nuts with Built-In Sleeve for Quick-Assembly Brass
Compression Tube Fittings for Air and Water

Nut with Acetal Sleeve

Nut with Brass Sleeve

Tubing: Use with firm or hard nylon plastic, polyethylene plastic or polypropylene plastic
Temperature Range: 0° to 150° F

Use these nuts with quick-assembly brass compression fittings to create a seal on plastic tubing. They have a built-in sleeve (ferrule), so the sleeve is positioned correctly for installation. Thread the nut onto the fitting, then insert the tubing and tighten the nut. They have good corrosion resistance.

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

			Nuts with Acetal Plastic Sleeves		Nuts with Brass Sleeves
For Tube OD	Nut Material	Max. Pressure		Each		Each
5/16"	Brass	150 psi @ 72° F	5053K12	00000	5053K16	00000

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.
1/4"	150 psi @ 72° F	10	5053K19	00000
5/16"	150 psi @ 72° F	10	5053K27	0000

Sleeves for 37° Flared Fittings for Stainless Steel Tubing