How to Identify and Measure Fittings
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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
The threads on the tube end of these fittings are Class 3A or 3B and adhere to tighter tolerances than other 37° flared fittings. They are made to exact AS (formerly AN) specifications and provide a tight metal-to-metal seal on tubing that is flared to 37°. Fittings require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.
316 stainless steel fittings have excellent corrosion resistance.
| For Tube OD | Max. Pressure | Specifications Met | Each | |
316 Stainless Steel  | ||||
|---|---|---|---|---|
| 1/4" | 3,000 psi @ 72° F | AN824-4K, ASTM A380, SAE AS4841 | 00000000 | 000000 |
| For Tube OD | Max. Pressure | Specifications Met | Each | |
316 Stainless Steel | ||||
|---|---|---|---|---|
| 1/4" | 3,000 psi @ 72° F | AN818-4K, ASTM A380, SAE AS4841 | 00000000 | 000000 |
| For Tube OD | Max. Pressure | Specifications Met | Each | |
316 Stainless Steel | ||||
|---|---|---|---|---|
| 1/4" | 3,000 psi @ 72° F | AN819-4K, ASTM A380, MS20819, SAE AS4841, SAE AS5176 | 00000000 | 00000 |
Vibration-Resistant 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 500° F
- Tubing: Use with seamless 304 or 316 stainless steel
- Specifications Met: See Table
A PTFE seal on the tube end of these fittings allows for an extra-strong connection in high-vibration applications. The threads on the tube end are Class 3A and adhere to tighter tolerances than other 37° flared fittings. They are made to exact AS (formerly AN) specifications and provide a tight metal-to-metal seal on tubing that is flared to 37°. Fittings are 316 stainless steel for excellent corrosion resistance. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.
| For Tube OD | Material | Max. Pressure | Specifications Met | Each | |
| 1/4" | 316 Stainless Steel | 3,000 psi @ 72° F | AN824-4K, ASTM A380, SAE AS9100D, SAE AS9104/1 | 00000000 | 000000 |
| For Tube OD | Nut Material | Max. Pressure | Specifications Met | Each | |
| 1/4" | 316 Stainless Steel | 3,000 psi @ 72° F | AN818-4K, ASTM A380, SAE AS4841 | 00000000 | 000000 |
| For Tube OD | Sleeve Material | Max. Pressure | Specifications Met | Each | |
| 1/4" | 316 Stainless Steel | 3,000 psi @ 72° F | AN819-4K, ASTM A380, MS20819, SAE AS4841 | 00000000 | 00000 |