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Vibration-Resistant Compression Fittings for Steel Tubing
Threads with
Gasket and Washer
- For Use With: Cutting Oil, Diesel Fuel
- Temperature Range: -30° to 250° F
- Tubing: Use with seamless steel
- Specifications Met: DIN 3861
The sleeve (ferrule) in these fittings is made of rubber instead of metal, so it cushions the tubing and absorbs vibration while creating a tight seal. Fittings are also known as flareless fittings. They are zinc-plated steel for fair corrosion resistance.
BSPP male threads have a gasket and washer to prevent leaks.
Metric male threads have either a gasket or a gasket and washer to prevent leaks.
For technical drawings and 3-D models, click on a part number.
Threads with
Gasket and Washer
| For Tube OD, mm | Pipe Size  | Thread Size | Thread Pitch, mm | Material | Gasket Material | Washer Material | Max. Pressure | Each | |
NPTF Threads | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 6 | 1/8 | __ | __ | Zinc-Plated Steel | __ | __ | 4,500 psi @ 72° F | 00000000 | 00000 |
| 8 | 1/4 | __ | __ | Zinc-Plated Steel | __ | __ | 4,500 psi @ 72° F | 00000000 | 00000 |
Metric Threads | |||||||||
| 6 | __ | M10 | 1 | Zinc-Plated Steel | Buna-N Rubber | __ | 7,200 psi @ 72° F | 0000000 | 00000 |
| 8 | __ | M12 | 1.5 | Zinc-Plated Steel | Buna-N Rubber | __ | 7,200 psi @ 72° F | 0000000 | 00000 |
| 10 | __ | M14 | 1.5 | Zinc-Plated Steel | Buna-N Rubber | __ | 7,200 psi @ 72° F | 0000000 | 00000 |
| 12 | __ | M16 | 1.5 | Zinc-Plated Steel | Buna-N Rubber | __ | 5,800 psi @ 72° F | 0000000 | 000000 |
BSPP Threads | |||||||||
| 6 | 1/8 | __ | __ | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 7,200 psi @ 72° F | 0000000 | 0000 |
| 6 | 1/4 | __ | __ | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 7,200 psi @ 72° F | 00000000 | 00000 |
| 8 | 1/4 | __ | __ | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 7,200 psi @ 72° F | 0000000 | 00000 |
| 10 | 1/4 | __ | __ | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 7,200 psi @ 72° F | 0000000 | 00000 |
| 12 | 3/8 | __ | __ | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 5,800 psi @ 72° F | 0000000 | 00000 |
| For Tube OD, mm | Thread Size | Thread Pitch, mm | Material | Max. Pressure | Each | |
Metric Threads | ||||||
|---|---|---|---|---|---|---|
| 6 | M10 | 1 | Zinc-Plated Steel | 4,500 psi @ 72° F | 00000000 | 000000 |
Threads with
Gasket and Washer
| For Tube OD, mm | Pipe Size | Material | Gasket Material | Washer Material | Max. Pressure | Each | |
BSPP Threads | |||||||
|---|---|---|---|---|---|---|---|
| 6 | 1/8 | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 4,500 psi @ 72° F | 0000000 | 000000 |
| 8 | 1/4 | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 4,500 psi @ 72° F | 0000000 | 00000 |
| 10 | 1/4 | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 4,500 psi @ 72° F | 0000000 | 00000 |
| 12 | 3/8 | Zinc-Plated Steel | Buna-N Rubber | Zinc-Plated Steel | 3,600 psi @ 72° F | 0000000 | 00000 |
Vibration-Resistant Compression Fittings for Stainless Steel Tubing
- For Use With: Acetylene, Air, Butane, Compressed Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Helium, Hydraulic Fluid (Petroleum Base), Kerosene, Mineral Oil, Natural Gas, Nitrogen, Propane, Soap Solutions
- Temperature Range: -10° to 400° F
- Tubing: Use with seamless 316Ti or 321 stainless steel
- Specifications Met: DIN 3861
Instead of a metal sleeve (ferrule), these fittings have a rubber sleeve that cushions tubing and absorbs vibration to maintain a tight seal, even when connected to large pumps. However, rubber sleeves can’t withstand temperatures as high as metal ones. To create the strong seal, tighten the included nut. These fittings are made of 316 stainless steel, so they have excellent corrosion resistance. They’re also known as flareless fittings. All meet DIN 3861, which is an international standard for compression tube fitting specifications.
BSPP and metric male threads have a gasket to prevent leaks.
For technical drawings and 3-D models, click on a part number.
Male Threads with
Gasket and Washer
For Tube | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Pipe Size | Thread Size | Thread Pitch, mm | Material | Gasket Material | Maximum Pressure | Each | |
NPT Threads | |||||||||
| 6 | 1 | 1/8 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 6 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 00000 |
| 8 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 00000 |
| 10 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 10 | 1 | 3/8 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 12 | 1.5 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 12 | 1.5 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 15 | 1.5 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
| 18 | 2 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
BSPP Threads | |||||||||
| 6 | 1 | 1/8 | __ | __ | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
| 6 | 1 | 1/4 | __ | __ | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
Metric Threads | |||||||||
| 8 | 1 | __ | M12 | 1.5 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 000000 |
| 10 | 1 | __ | M14 | 1.5 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
For Tube | |||||
|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Nut Material | Maximum Pressure | Each | |
| 6 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 000000 |
| 8 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
| 10 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
| 12 | 1.5 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
| 15 | 1.5 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
| 18 | 2 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |