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DIN 3869 Profile Ring Description
Profile Rings according to DIN 3869 are used as axially static soft seals in combination with threaded elements. Common applications include construction machinery, hydraulic presses, injection machines, fittings, hydraulic valves, and threaded tube connections in industry in general.
The special shape of Profile Rings enables them to be used in high-pressure applications, compensate for manufacturing tolerances, and provide reliable sealing action.
Profile Ring Materials, Use, and Capabilities
| Compound | Profile Image | Material | Durometer | Color | Temp Range |
|---|---|---|---|---|---|
| N85 |  |
NBR (Buna-N, Nitrile) | 85 Shore A | Black | -30 to 100ºC (-22 to 212ºF) |
| V80 |  |
Viton (FKM) | 80 Shore A | Green | -20 to 200ºC (-4 to 392ºF) |
| E80 |  |
EPDM | 80 Shore A | Purple | -45 to 150ºC (-49 to 302ºF) |
DIN 3869 Profile Ring Part Numbers
Our DIN 3869 Profile Ring part numbers all start with PR and follow a similar format:
DIN 3869 Profile Ring Size Chart
| Nominal Size | Thread (metric) | Thread (inch) | ID | OD | T +/- 0.1 | T1 +/- 0.2 |
|---|---|---|---|---|---|---|
| 8 | M8 x 1.0 | 6.5 | 9.9 | 1 | 0.5 | |
| 10 | M10 x 1 | G 1/8 A | 8.4 | 11.9 | 1 | 0.5 |
| 12 | M12 x 1.5 | – | 9.8 | 14.4 | 1.5 | 0.8 |
| 14 | M14 1.5 | G 1/4 A | 11.6 | 16.5 | 1.5 | 0.8 |
| 16 | M16 x 1.5 | – | 13.8 | 18.9 | 1.5 | 0.8 |
| 17 | – | G 3/8 A | 14.7 | 18.9 | 1.5 | 0.8 |
| 18 | M18 x 1.5 | – | 15.7 | 20.9 | 1.5 | 0.8 |
| 20 | M20 x 1.5 | – | 17.8 | 22.9 | 1.5 | 0.8 |
| 21 | – | G 1/2 A | 18.5 | 23.9 | 1.5 | 0.8 |
| 22 | M22 x 1.5 | – | 19.6 | 24.3 | 1.5 | 0.8 |
| 24 | M24 x 1.5 | 21.8 | 26.9 | 1.5 | 0.8 | |
| 27 | M26 x 1.5 / M27 x 2.0 | G 3/4 A | 23.9 | 29.2 | 1.5 | 0.8 |
| 30 | M30 x 1.5 | 27.7 | 32.7 | 2 | 0.8 | |
| 33 | M33 x 2.0 | G 1 A | 29.7 | 35.7 | 2 | 1 |
| 38 | M38 x 1.5 | 35.9 | 43.2 | 2.4 | 1 | |
| 42 | M42 x 2.0 | G 1 1/4 A | 38.8 | 45.8 | 2 | 1 |
| 48 | M48 x 2.0 | G 1 1/2 A | 44.7 | 50.7 | 2 | 1 |
| 60 | M60 x 2.0 | G 2 A | 56.5 | 66.1 | 4 | 2 |