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Front and Back Sleeves for Yor-Lok Fittings for Stainless Steel Tubing


- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with seamless or welded 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Couple these sleeves with Yor-Lok nuts and fittings to create an extra-strong seal on stainless steel tubing. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.
Sleeves with a dispenser come with 10 sets of front and back sleeves. Rather than stacking sleeves in your hand, the dispenser stages them for quick alignment with your Yor-Lok fitting. Insert the dispenser into the fitting, then slide the sleeves into place.
For technical drawings and 3-D models, click on a part number.
For Tube | Front Sleeve | Back Sleeve | |||||||
---|---|---|---|---|---|---|---|---|---|
OD | Wall Thick. | Sleeve Material | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Each | |
Sleeves | |||||||||
1/8" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 6,000 psi @ 72° F | 00000000 | 00000 |
3/16" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 5,500 psi @ 72° F | 00000000 | 0000 |
1/4" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 4,000 psi @ 72° F | 00000000 | 0000 |
5/16" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 3,000 psi @ 72° F | 00000000 | 0000 |
3/8" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 2,500 psi @ 72° F | 00000000 | 0000 |
Sleeves with Dispenser | |||||||||
1/8" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 3/32" | 10 | 6,000 psi @ 72° F | 00000000 | 00000 |
3/16" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 3/32" | 10 | 5,500 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 7/64" | 10 | 4,000 psi @ 72° F | 00000000 | 00000 |
5/16" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 7/64" | 10 | 3,000 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 7/64" | 10 | 2,500 psi @ 72° F | 00000000 | 00000 |
Sleeve and Nut Sets for Yor-Lok Fittings for Stainless Steel Tubing


- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with seamless or welded 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Save time installing sleeves and nuts—these sets come oriented in the correct direction and order on a dispenser. To install them, slide off a set and place it on your tubing. Each front sleeve, back sleeve, and nut is made of 316 stainless steel for excellent corrosion resistance. Five sets of sleeves and nuts come on each dispenser. Sleeves are also known as ferrules.
For Tube | Front Sleeve | Back Sleeve | Nut | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
OD | Wall Thick. | Material | Lg. | No. Included | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Each | |
Sets with Dispenser | |||||||||||
1/8" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 3/32" | 5 | 15/32" | 5 | 6,000 psi @ 72° F | 0000000 | 000000 |
3/16" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 3/32" | 5 | 15/32" | 5 | 5,500 psi @ 72° F | 0000000 | 00000 |
1/4" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 7/64" | 5 | 1/2" | 5 | 4,000 psi @ 72° F | 0000000 | 00000 |
5/16" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 7/64" | 5 | 17/32" | 5 | 3,000 psi @ 72° F | 0000000 | 00000 |
3/8" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 7/64" | 5 | 9/16" | 5 | 2,500 psi @ 72° F | 0000000 | 00000 |
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 technical drawings and 3-D models, click on a part number.
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Sleeve Material | Max. Pressure | Pkg. Qty. | Pkg. | |
1/8" | 0.03" | Brass | 400 psi @ 72° F | 10 | 000000000 | 00000 |
Front and Back Sleeves for Yor-Lok Fittings for Copper Tubing
- For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -40° to 400° F
- Tubing: Use with seamless copper
- Specifications Met: ASME B31.3
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Use these sleeves with Yor-Lok nuts and fittings to create an extra-strong seal on copper tubing. Sleeves are brass for good corrosion resistance. They are also known as ferrules.
Sleeves with a dispenser come with 10 sets of front and back sleeves. Rather than stacking sleeves in your hand, the dispenser stages them for quick alignment with your Yor-Lok fitting. Insert the dispenser into the fitting, then slide the sleeves into place.

Front Sleeve | Back Sleeve | |||||||
---|---|---|---|---|---|---|---|---|
For Tube OD | Sleeve Material | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Each | |
1/8" | Brass | 3/16" | 1 | 3/32" | 1 | 2,900 psi @ 72° F | 00000000 | 00000 |
3/16" | Brass | 3/16" | 1 | 3/32" | 1 | 2,300 psi @ 72° F | 00000000 | 0000 |
1/4" | Brass | 3/16" | 1 | 3/32" | 1 | 1,600 psi @ 72° F | 00000000 | 0000 |
5/16" | Brass | 3/16" | 1 | 3/32" | 1 | 1,300 psi @ 72° F | 00000000 | 0000 |
3/8" | Brass | 3/16" | 1 | 3/32" | 1 | 1,000 psi @ 72° F | 00000000 | 0000 |

Front Sleeve | Back Sleeve | |||||||
---|---|---|---|---|---|---|---|---|
For Tube OD | Sleeve Material | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Each | |
1/8" | Brass | 3/16" | 10 | 7/64" | 10 | 2,800 psi @ 72° F | 00000000 | 000000 |
3/16" | Brass | 3/16" | 10 | 7/64" | 10 | 1,800 psi @ 72° F | 00000000 | 00000 |
1/4" | Brass | 3/16" | 10 | 7/64" | 10 | 1,300 psi @ 72° F | 00000000 | 00000 |
5/16" | Brass | 3/16" | 10 | 7/64" | 10 | 1,300 psi @ 72° F | 00000000 | 00000 |
3/8" | Brass | 3/16" | 10 | 7/64" | 10 | 1,100 psi @ 72° F | 00000000 | 00000 |
5/8" | Brass | 3/16" | 10 | 7/64" | 10 | 1,250 psi @ 72° F | 00000000 | 00000 |
Sleeve and Nut Sets for Yor-Lok Fittings for Copper Tubing


- For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -40° to 400° F
- Tubing: Use with seamless copper
- Specifications Met: ASME B31.3
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Save time installing sleeves and nuts—these sets come oriented in the correct direction and order on a dispenser. To install them, slide off a set and place it on your tubing. Each set includes a front sleeve, a back sleeve, and a nut. The sleeves are also known as ferrules.
Front Sleeve | Back Sleeve | Nut | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Material | Lg. | No. Included | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Includes | Each | |
1/8" | Brass | 3/16" | 5 | 7/64" | 5 | 15/32" | 5 | 2,800 psi @ 72° F | Dispenser | 0000000 | 000000 |
3/16" | Brass | 3/16" | 5 | 7/64" | 5 | 15/32" | 5 | 1,800 psi @ 72° F | Dispenser | 0000000 | 00000 |
1/4" | Brass | 3/16" | 5 | 7/64" | 5 | 1/2" | 5 | 1,300 psi @ 72° F | Dispenser | 0000000 | 00000 |
5/16" | Brass | 3/16" | 5 | 7/64" | 5 | 17/32" | 5 | 1,300 psi @ 72° F | Dispenser | 0000000 | 00000 |
3/8" | Brass | 3/16" | 5 | 7/64" | 5 | 9/16" | 5 | 1,100 psi @ 72° F | Dispenser | 0000000 | 00000 |
1/2" | Brass | 3/16" | 5 | 7/64" | 5 | 11/16" | 5 | 1,200 psi @ 72° F | Dispenser | 0000000 | 00000 |
Front and Back Sleeves for Yor-Lok Fittings for Steel Tubing

- For Use With: Air, Mineral Oil, Fuel Oil, Gasoline, Diesel Fuel, Cutting Oil, Hydraulic Fluid
- Temperature Range: -20° to 800° F
- Tubing: Use with seamless steel
- Specifications Met: ASME B31.3
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Use these sleeves with Yor-Lok nuts and fittings to create an extra-strong seal on steel tubing. They are also known as ferrules.
Zinc-plated steel sleeves have fair corrosion resistance. 316 stainless steel sleeves have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Front Sleeve Material | Back Sleeve Material | Max. Pressure | Each | |
1/8" | 0.035" | Zinc-Plated Steel | 316 Stainless Steel | 6,800 psi @ 72° F | 00000000 | 00000 |
3/16" | 0.035" | Zinc-Plated Steel | 316 Stainless Steel | 6,700 psi @ 72° F | 00000000 | 0000 |
1/4" | 0.035" | Zinc-Plated Steel | 316 Stainless Steel | 4,850 psi @ 72° F | 00000000 | 0000 |
5/16" | 0.035" | Zinc-Plated Steel | 316 Stainless Steel | 3,800 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | Zinc-Plated Steel | 316 Stainless Steel | 3,100 psi @ 72° F | 00000000 | 00000 |
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 technical drawings and 3-D models, click on a part number.
Sleeves for Quick-Assembly Brass Compression Tube Fittings for Air and Water

- 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.
For technical drawings and 3-D models, click on a part number.
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.
For technical drawings and 3-D models, click on a part number.