How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Precision Compression Fittings for Stainless Steel Tubing
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239kc1-c01f--30d33810771638898404-p9@halfx_637744736075453290.png?ver=imagenotfound)
- For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Parker CPI
Made to tighter tolerances than other compression fittings, these are designed for high-precision applications. Also known as instrumentation fittings and flareless fittings. They come with a nut and a single sleeve (ferrule). The sleeve bites into tubing as you tighten the nut to create a strong seal. Fittings are 316 stainless steel for excellent corrosion resistance. A molybdenum disulfide coating on the nut acts as a lubricant for easy installation.
For technical drawings and 3-D models, click on a part number.
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For Tube | ||||||
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OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
1/16" | 0.02" | 1/16 | 316 Stainless Steel | 7,500 psi @ 72° F | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k53-@halfx_637744636243866436.png?ver=imagenotfound)
For Tube | ||||||
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OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
1/16" | 0.02" | 1/16 | 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k195-@halfx_637744719846172048.png?ver=imagenotfound)
For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Each | |
1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k83-@halfx_637744643844927679.png?ver=imagenotfound)
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
1/16" | 0.02" | 1/16 | 316 Stainless Steel | 7,500 psi @ 72° F | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k215-@halfx_637744723486301451.png?ver=imagenotfound)
For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Each | |
1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k225-@halfx_637744724940966516.png?ver=imagenotfound)
For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Each | |
1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k245-@halfx_637744728751115590.png?ver=imagenotfound)
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Caps for tubing have a nut and a sleeve so you can close off the end of your tubing in place of a fitting. Caps for fittings replace the nut and sleeve of an existing fitting.
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k265-@halfx_637744731808082528.png?ver=imagenotfound)
For Tube | ||||
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OD | Wall Thick. | Nut Material | Max. Pressure | |
1/16" | 0.02" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k275-@halfx_637744732659718380.png?ver=imagenotfound)
For Tube | ||||
---|---|---|---|---|
OD | Wall Thick. | Sleeve Material | Max. Pressure | |
1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 |
Sleeves for Precision Compression Fittings for Stainless Steel Tubing
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k275-@halfx_637744732659718380.png?ver=imagenotfound)
- For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with seamless or welded 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Parker CPI
Use these sleeves with precision compression nuts and fittings to create a strong seal on stainless steel tubing. Made to tighter tolerances than other sleeves, these are designed for high-precision applications. 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.
For Tube | ||||
---|---|---|---|---|
OD | Wall Thick. | Max. Pressure | Each | |
1/16" | 0.02" | 7,500 psi @ 72° F | 00000000 | 00000 |
Nuts for Precision Compression Fittings for Stainless Steel Tubing
![](/prerenderstable/mvPRE/contents/gfx/imagecache/823/8239k265-@halfx_637744731808082528.png?ver=imagenotfound)
- For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with seamless or welded 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Parker CPI
Use these nuts with precision compression sleeves and fittings to create a strong seal on stainless steel tubing. Made to tighter tolerances than other nuts, these are designed for high-precision applications. Nuts are 316 stainless steel for excellent corrosion resistance. They have a molybdenum disulfide coating that acts as a lubricant for easy installation.
For technical drawings and 3-D models, click on a part number.
For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Nut Material | Max. Pressure | Each | |
1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 | 00000 |
Compression Fittings for Stainless Steel Tubing
![](/prerenderstable/mvPRE/contents/gfx/imagecache/522/52245kc1-c01f--30b867eb2421638385460-p9@halfx_637739606643355272.png?ver=imagenotfound)
- For Use With:
303 Stainless Steel, 316 Stainless Steel with 17-4 PH Stainless Steel Sleeve, and 360 Brass: Air, Water, Hydraulic Fluid
316 Stainless Steel: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water - Temperature Range: See table
- Tubing:
303 Stainless Steel and 360 Brass: Use with welded or seamless 304 or 316 stainless steel
316 Stainless Steel: Use with seamless 304 or 316/316L/316Ti stainless steel that meets DIN EN 10216-5 or DIN EN 10305-1
316 Stainless Steel with 17-4 PH Stainless Steel Sleeve: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A269 - Specifications Met:
316 Stainless Steel: ISO 8434, DIN 2353
316 Stainless Steel with 17-4 PH Stainless Steel Sleeve: SAE J514
A single sleeve (ferrule) bites into tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings or bite fittings.
303 stainless steel fittings and 360 brass fittings have good corrosion resistance. Metric and UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
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(SAE Straight) Male
Threads with Gasket
For Tube | ||||||||||
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OD | Wall Thick. | Thread Size | Thread Pitch, mm | Material | Gasket Material | Sleeve Material | Max. Pressure | Temp. Range, °F | Each | |
Metric Threads | ||||||||||
1/16" | 0.01" | M3 | 0.5 | 303 Stainless Steel | Fluoroelastomer Rubber | 303 Stainless Steel | 2,000 psi @ 72° F | -4° to 400° | 0000000 | 000000 |
1/16" | 0.01" | M5 | 0.8 | 303 Stainless Steel | Fluoroelastomer Rubber | 303 Stainless Steel | 2,000 psi @ 72° F | -4° to 400° | 0000000 | 00000 |
UN/UNF (SAE Straight) Threads | ||||||||||
1/16" | 0.01" | 10-32 | __ | 303 Stainless Steel | Fluoroelastomer Rubber | 303 Stainless Steel | 2,000 psi @ 72° F | -4° to 400° | 0000000 | 00000 |
1/16" | 0.01" | 10-32 | __ | Nickel-Plated 360 Brass | Buna-N Rubber | 360 Brass | 2,000 psi @ 72° F | -40° to 250° | 0000000 | 00000 |