TOLERANCES FOR RUBBER SHEET PACKING
THICKNESSTOLERANCES
MillimetersInches (approximate)MillimetersInches
Under 0.80Under 0.031± 0.25± 0.010
0.80 to 1.590.031 to 0.059± 0.30± 0.012
1.60 to 3.190.060 to 0.124± 0.40± 0.016
3.20 to 4.790.125 to 0.186± 0.50± 0.020
4.80 to 9.490.187 to 0.374± 0.80± 0.031
9.50 to 14.290.375 to 0.561± 1.20± 0.047
14.30 to 19.190.562 to 0.749± 1.60± 0.063
19.20 to 25.390.750 to 0.999± 2.40± 0.093
25.40 and over1.00 and over± 10%± 10%
TOLERANCES FOR SPECIAL EXTRUDED SHAPES (except tubing)
DIMENSIONSTOLERANCES
MillimetersInches (approximate)MillimetersInches
0 to 2.490 to 3/32± 0.41± 0.016
2.50 to 3.993/32 to 5/32± 0.51± 0.020
4.00 to 6.295/32 to 1/4± 0.64± 0.025
6.30 to 9.991/4 to 13/32± 0.76± 0.030
10.00 to 15.9913/32 to 5/8± 1.02± 0.040
16.00 to 24.995/8 to 1± 1.60± 0.063
25.00 to 39.991 to 1-5/8± 2.03± 0.080
40.00 to 63.001-5/8 to 2-1/2± 2.03± 0.080
TOLERANCES FOR SPECIAL EXTRUDED SHAPES
TOLERANCES OF MANDREL CURED ITEMSTOLERANCES OF OTHER CURED ITEMS
SIZESINSIDE DIAMETERINSIDE DIAMETEROUTSIDE DIAMETER
Millimeters Inches (approx.)Millimeters (Inches)+ Millimeters (Inches)+ Millimeters (Inches)
0 to 9.99 0.00 - 0.399+0 -0.25 (+0 -0.010)0.51 (0.020)0.78 ( 1/32 )
10 to 15.99 0.40 - 0.629+0 -0.31 (+0 -0.012)0.78 ( 1/32 )1.19 ( 3/64 )
16 to 24.99 0.63 - 0.999+0 -0.40 (+0 -0.016)0.78 ( 1/32 )1.19 ( 3/64 )
25 to 39.99 1.00 - 1.599+0 -0.50 (+0 -0.020)1.19 ( 3/64 )1.69 ( 1/16 )
40 to 62.99 1.60 - 2.499+0 -0.63 (+0 -0.025)1.19 ( 3/64 )1.69 ( 1/16 )
63 to 100.00 2.50 - 4.000+0 -0.80 (+0 -0.032)
TOLERANCES FOR CALENDERED SHEETS  
DIMENSIONSTOLERANCES
MillimetersInches (approximate)MillimetersInches
0 to 0.990 to 0.039± 0.18± 0.007
1.00 to 1.740.04 to 0.069± 0.30± 0.012
1.75 to 3.390.07 to 0.134± 0.43± 0.017
3.40 and over0.135 and over± 0.56± 0.022