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Standard O-Rings are available in 369 sizes as set up by the Aerospace Standard 568 published by the Society of Automotive Engineers. These sizes are designated by dash numbers shown on the 568 DASH Chart and are standardized by imperial dimensions. Standard O-Rings are specified by their inside diameter and cross section width. AS568 is the most commonly used standard in the U.S. for aerospace, automotive and general industrial applications. For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C).
AS568 Buna O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

Cross Section Tolerance +/-

Inside Diameter Tolerance +/-

Size Reference - AS568

Alternate P/N

Units of Measure

Tube Size O.D.

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O-Ring Industries

Quantity
M-026S70 N/A
192766 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 31.47 mm1.239 in N/A 0.003 in0.08 mmNumeric N/A 0.011 in0.28 mmNumeric mm N/A -026 N/A 026S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-027S70 N/A
192767 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 33.05 mm1.301 in N/A 0.003 in0.08 mmNumeric N/A 0.011 in0.28 mmNumeric mm N/A -027 N/A 027S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-028S70 N/A
192768 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 34.65 mm1.364 in N/A 0.003 in0.08 mmNumeric N/A 0.013 in0.33 mmNumeric mm N/A -028 N/A 028S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-029S70 N/A
192769 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 37.82 mm1.489 in N/A 0.003 in0.08 mmNumeric N/A 0.013 in0.33 mmNumeric mm N/A -029 N/A 029S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-030S70 N/A
192770 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 41.00 mm1.614 in N/A 0.003 in0.08 mmNumeric N/A 0.013 in0.33 mmNumeric mm N/A -030 N/A 030S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-031S70 N/A
192771 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 44.17 mm1.739 in N/A 0.003 in0.08 mmNumeric N/A 0.015 in0.36 mmNumeric mm N/A -031 N/A 031S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-032S70 N/A
192772 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 47.35 mm1.864 in N/A 0.003 in0.08 mmNumeric N/A 0.015 in0.38 mmNumeric mm N/A -032 N/A 032S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-033S70 N/A
192773 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 50.52 mm1.989 in N/A 0.003 in0.08 mmNumeric N/A 0.018 in0.46 mmNumeric mm N/A -033 N/A 033S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-034S70 N/A
192774 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 53.70 mm2.114 in N/A 0.003 in0.08 mmNumeric N/A 0.018 in0.46 mmNumeric mm N/A -034 N/A 034S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-035S70 N/A
192775 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 56.87 mm2.239 in N/A 0.003 in0.08 mmNumeric N/A 0.018 in0.46 mmNumeric mm N/A -035 N/A 035S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-036S70 N/A
192776 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 60.05 mm2.364 in N/A 0.003 in0.08 mmNumeric N/A 0.018 in0.46 mmNumeric mm N/A -036 N/A 036S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-037S70 N/A
192777 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 63.22 mm2.489 in N/A 0.003 in0.08 mmNumeric N/A 0.018 in0.46 mmNumeric mm N/A -037 N/A 037S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-038S70 N/A
192778 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 66.40 mm2.614 in N/A 0.003 in0.08 mmNumeric N/A 0.020 in0.50 mmNumeric mm N/A -038 N/A 038S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-039S70 N/A
192779 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 69.57 mm2.739 in N/A 0.003 in0.08 mmNumeric N/A 0.020 in0.50 mmNumeric mm N/A -039 N/A 039S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-040S70 N/A
192780 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 72.75 mm2.864 in N/A 0.003 in0.08 mmNumeric N/A 0.020 in0.50 mmNumeric mm N/A -040 N/A 040S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-041S70 N/A
192781 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 75.92 mm2.989 in N/A 0.003 in0.08 mmNumeric N/A 0.024 in0.61 mmNumeric mm N/A -041 N/A 041S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-042S70 N/A
192782 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 82.27 mm3.239 in N/A 0.003 in0.08 mmNumeric N/A 0.024 in0.61 mmNumeric mm N/A -042 N/A 042S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-043S70 N/A
192783 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 88.62 mm3.489 in N/A 0.003 in0.08 mmNumeric N/A 0.024 in0.61 mmNumeric mm N/A -043 N/A 043S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-044S70 N/A
192784 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 94.97 mm3.739 in N/A 0.003 in0.08 mmNumeric N/A 0.027 in0.69 mmNumeric mm N/A -044 N/A 044S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-045S70 N/A
192785 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 101.32 mm3.989 in N/A 0.003 in0.08 mmNumeric N/A 0.027 in0.69 mmNumeric mm N/A -045 N/A 045S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-046S70 N/A
192786 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 107.67 mm4.239 in N/A 0.003 in0.08 mmNumeric N/A 0.030 in0.76 mmNumeric mm N/A -046 N/A 046S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-047S70 N/A
192787 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 114.02 mm4.489 in N/A 0.003 in0.08 mmNumeric N/A 0.030 in0.76 mmNumeric mm N/A -047 N/A 047S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-048S70 N/A
192788 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 120.37 mm4.739 in N/A 0.003 in0.08 mmNumeric N/A 0.030 in0.76 mmNumeric mm N/A -048 N/A 048S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-049S70 N/A
192789 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 126.72 mm4.989 in N/A 0.003 in0.08 mmNumeric N/A 0.037 in0.94 mmNumeric mm N/A -049 N/A 049S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
M-050S70 N/A
192790 		N/A Long Text N/A Long Text N/A 0.070 in1.78 mmNumeric mm N/A 70 N/A 133.07 mm5.239 in N/A 0.003 in0.08 mmNumeric N/A 0.037 in0.94 mmNumeric mm N/A -050 N/A 050S70 N/A Long Text N/A Numeric N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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