8/13/2019 Allstate Gasket O-Ring Dash Sizes
13/13
FRACTIONAL and DECIMAL INCH and MILLIMETER O-RING LOOKUP by
AS568 DASH NUMBERS
Available in pdf format at www.AllstateGasket.comDISTRIBUTE
FREELY! Page 12 of 12
Always perform your own tests to obtain safety and performance
data. While every effort has been made to assure accuracy, Allstate
Gasket assumes no responsibility for errors or omissions.
AS568 INCHES / Fractions INCHES / Decimal Mil limeter s (mm)
Dash No. Inch ID Inch OD Width Inch ID Inch OD Width
Act ual
ID (in)
Actual
Width (in) mm ID mm OD Width
Act ual
ID (mm)
Act ual
Width (mm)
-457 14 14-1/2 1/4 14.00 14.50 0.25 13.975.070 .275.006 355.60
368.30 6.35 354.971.78 6.990.15
-458 14-1/2 15 1/4 14.50 15.00 0.25 14.475.070 .275.006 368.30
381.00 6.35 367.671.78 6.990.15
-459 15 15-1/2 1/4 15.00 15.50 0.25 14.975.070 .275.006 381.00
393.70 6.35 380.371.78 6.990.15
-460 15-1/2 16 1/4 15.50 16.00 0.25 15.475.070 .275.006 393.70
406.40 6.35 393.071.78 6.990.15
-461 16 16-1/2 1/4 16.00 16.50 0.25 15.955.075 .275.006 406.40
419.10 6.35 405.261.91 6.990.15
-462 16-1/2 17 1/4 16.50 17.00 0.25 16.455.075 .275.006 419.10
431.80 6.35 417.961.91 6.990.15
-463 17 17-1/2 1/4 17.00 17.50 0.25 16.955.080 .275.006 431.80
444.50 6.35 430.662.03 6.990.15
-464 17-1/2 18 1/4 17.50 18.00 0.25 17.455.085 .275.006 444.50
457.20 6.35 443.362.16 6.990.15-465 18 18-1/2 1/4 18.00 18.50 0.25
17.955.085 .275.006 457.20 469.90 6.35 456.062.16 6.990.15
-466 18-1/2 19 1/4 18.50 19.00 0.25 18.455.085 .275.006 469.90
482.60 6.35 468.762.16 6.990.15
-467 19 19-1/2 1/4 19.00 19.50 0.25 18.955.090 .275.006 482.60
495.30 6.35 481.462.29 6.990.15
-468 19-1/2 20 1/4 19.50 20.00 0.25 19.455.090 .275.006 495.30
508.00 6.35 494.162.29 6.990.15
-469 20 20-1/2 1/4 20.00 20.50 0.25 19.955.095 .275.006 508.00
520.70 6.35 506.862.41 6.990.15
-470 21 21-1/2 1/4 21.00 21.50 0.25 20.955.095 .275.006 533.40
546.10 6.35 532.262.41 6.990.15
-471 22 22-1/2 1/4 22.00 22.50 0.25 21.955.100 .275.006 558.80
571.50 6.35 557.662.54 6.990.15
-472 23 23-1/2 1/4 23.00 23.50 0.25 22.940.105 .275.006 584.20
596.90 6.35 582.682.67 6.990.15-473 24 24-1/2 1/4 24.00 24.50 0.25
23.940.110 .275.006 609.60 622.30 6.35 608.082.79 6.990.15
-474 25 25-1/2 1/4 25.00 25.50 0.25 24.940.115 .275.006 635.00
647.70 6.35 633.482.92 6.990.15
-475 26 26-1/2 1/4 26.00 26.50 0.25 25.940.120 .275.006 660.40
673.10 6.35 658.883.05 6.990.15
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