Measure the threaded ends of your fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
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.
For Tube | Front Sleeve | Back Sleeve | |||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Each | |
Sleeves | |||||||||
| 1/2" | 0.035" | 316 Stainless Steel | 19/64" | 1 | 5/32" | 1 | 2,000 psi @ 72° F | 5182K507 | 00000 |
| 5/8" | 0.049" | 316 Stainless Steel | 19/64" | 1 | 5/32" | 1 | 2,000 psi @ 72° F | 5182K508 | 0000 |
| 3/4" | 0.049" | 316 Stainless Steel | 19/64" | 1 | 5/32" | 1 | 2,000 psi @ 72° F | 5182K509 | 0000 |
Sleeves for Compression Fittings for Stainless Steel Tubing

Use these sleeves with compression nuts and fittings to create a strong seal on stainless steel tubing. Sleeves are stainless steel for excellent corrosion resistance. They are also known as ferrules or rings.
- For Use With: Air, Hydraulic Fluid, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with seamless or welded 304 or 316 stainless steel that meets ASTM A269
- Specifications Met: SAE J514
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 | |
| 1/2" | Brass | 19/64" | 10 | 9/64" | 10 | 1,200 psi @ 72° F | 5272K476 | 000000 |
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 Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Front Sleeve Material | Back Sleeve Material | Max. Pressure | Each | |
| 1/2" | 0.035" | Zinc-Plated Steel | 316 Stainless Steel | 2,300 psi @ 72° F | 5929K307 | 000000 |
| 5/8" | 0.035" | Zinc-Plated Steel | 316 Stainless Steel | 1,800 psi @ 72° F | 5929K308 | 00000 |
| 3/4" | 0.049" | Zinc-Plated Steel | 316 Stainless Steel | 2,150 psi @ 72° F | 5929K309 | 00000 |
Sleeves for D.O.T. Brass Compression Tube Fittings for Air

- Tubing: Use with hard (Durometer 65D) nylon plastic
- Specifications Met: D.O.T. FMVSS 571
- Temperature Range: -40° to 200° F
Use these sleeves with D.O.T. brass compression nuts and fittings to create a seal on nylon tubing. They are brass for good corrosion resistance.
| For Tube OD | Sleeve Material | Max. Pressure | Pkg. Qty. | Pkg. | |
| 1/4" | Brass | 150 psi @ 72° F | 10 | 51835K281 | 00000 |



























