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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 with Dispenser | |||||||||
1/4" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 7/64" | 10 | 4,000 psi @ 72° F | 00000000 | 000000 |
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 | |||||||||||
1/4" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 7/64" | 5 | 1/2" | 5 | 4,000 psi @ 72° F | 0000000 | 000000 |
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 |
Front and Back Sleeves for Extreme-Pressure
Yor-Lok Fittings for Stainless Steel Tubing

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Natural Gas, Water
- Temperature Range: -420° to 1,000° F
- Tubing: Use with seamless 316/316L stainless steel
- Specifications Met: ASME B31.3
Use these sleeves with extreme-pressure 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.
For technical drawings and 3-D models, click on a part number.
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" | 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 |
1/2" | Brass | 3/16" | 10 | 7/64" | 10 | 1,200 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 |