TOLERANCE TABLE FOR MOLDED RUBBER PRODUCTS DRAWING DESIGNATION "A4" (BASIC)
“A4” tolerances apply to those products where a certain degree of dimensional control is required, but is secondary to cost. Drawing Designation “A4” tolerances are not employed by RT/Dygert for custom molded parts.
| Size of Dimension (mm) | Fixed | Closure | Size of Dimension (in) | Fixed | Closure | ||
| Above | Including | Tol. | Tol. | Above | Including | Tol. | Tol. |
| 0.0 | 10.0 | ±0.32 | ±0.80 | 0.00 | 0.40 | ±.013 | ±.032 |
| 10.0 | 16.0 | ±0.40 | ±0.90 | 0.40 | 0.63 | ±.016 | ±.036 |
| 16.0 | 25.0 | ±0.50 | ±1.00 | 0.63 | 1.00 | ±.020 | ±.040 |
| 25.0 | 40.0 | ±0.63 | ±1.12 | 1.00 | 1.60 | ±.025 | ±.045 |
| 40.0 | 63.0 | ±0.80 | ±1.25 | 1.60 | 2.50 | ±0.32 | ±.050 |
| 63.0 | 100.0 | ±1.00 | ±1.40 | 2.50 | 4.00 | ±0.40 | ±.056 |
| 100.0 | 160.0 | ±1.25 | ±1.60 | 4.00 | 6.30 | ±0.50 | ±.063 |
| 160.0 | multiply by | 0.008 | 0.010 | 6.30 | multiply by | .008 | .010 |