Measure the threaded ends of your fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
Butt-Weld Fittings for Stainless Steel Tubing
- For Use With: See table
- Temperature Range: See table
- Tubing:
304 Stainless Steel: Use with 304/304L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except DIN EN 10357 fittings with only ASTM A269 or ASTM A270
316 Stainless Steel: Use with 316/316L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except ASME BPE and DIN EN 10357 fittings with only ASTM A269 or ASTM A270 - Specifications Met: See table
Weld these fittings to tubing for a permanent, flush connection that permits smooth flow through a line.
304/304L stainless steel fittings have very good corrosion resistance. 316/316L stainless steel fittings have excellent corrosion resistance.

| For Tube OD | Max. Pressure | Max. Vacuum | Temp. Range, °F | Lg. (A) | Wall Thick. | For Use With | Specifications Met | Each | |
304/304L Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Polished | |||||||||
| 1" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° to 250° | 1 3/16" | 0.065" | Dairy, Food | 3-A Certified 63-04 | 44655K21 | 000000 |
Dull | |||||||||
| 1" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° to 250° | 1 3/16" | 0.065" | Air, Food, Water | __ | 44675K21 | 00000 |
316/316L Stainless Steel | |||||||||
Polished | |||||||||
| 1" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° to 250° | 1 3/16" | 0.065" | Dairy, Food | 3-A Certified 63-04 | 5237K21 | 00000 |
Dull | |||||||||
| 1" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° to 250° | 1 3/16" | 0.065" | Air, Food, Water | __ | 5237K211 | 00000 |
Sleeves for 37° Flared Fittings for Stainless Steel Tubing

- For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
- Temperature Range: -420° to 1,200° F
- Tubing: Use with seamless or welded 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Specifications Met: ISO 8434, SAE J514
Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.
For Tube OD | |||
|---|---|---|---|
| Inch | Sleeve Material | Each | |
Inch | |||
| 2" | 316 Stainless Steel | 50715K114 | 0000000 |
Sleeves for Precision AN 37° Flared Fittings for Stainless Steel Tubing

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -320° to 1200° F
- Tubing: Use with seamless 304 or 316 stainless steel
- Specifications Met: See Table
Use these sleeves with precision AN nuts and fittings to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. They are also known as ferrules.
304 stainless steel sleeves have very good corrosion resistance. 316 stainless steel sleeves have excellent corrosion resistance.

























