Straight thread tube fittings sizing chart, AS568A

Aerospace O-Ring Standard AS568A

Sizes for Straight Thread Tube Fittings

900 SERIES

Inside Diameter (inches)

Cross-Section (inches)

No.

Min.

Mean

Max.

C-S

Tolerance

-901 0.180 0.185 0.190 0.056 + or - 0.003

-902 0.234 0.239 0.244 0.064 + or - 0.003

-903 0.296 0.301 0.306 0.064 + or - 0.003

-904 0.346 0.351 0.356 0.072 + or - 0.003

-905 0.409 0.414 0.419 0.072 + or - 0.003

-906 0.463 0.468 0.473 0.078 + or - 0.003

-907 0.523 0.530 0.537 0.082 + or - 0.003

-908 0.635 0.644 0.653 0.087 + or - 0.003

-909 0.697 0.706 0.715 0.097 + or - 0.003

-910 0.746 0.755 0.764 0.097 + or - 0.003

-911 0.854 0.863 0.872 0.116 + or - 0.004

-912 0.915 0.924 0.933 0.116 + or - 0.004

-913 0.976 0.986 0.996 0.116 + or - 0.004

-914 1.037 1.047 1.057 0.116 + or - 0.004

-916 1.161 1.171 1.181 0.116 + or - 0.004

-918 1.343 1.355 1.367 0.116 + or - 0.004

-920 1.461 1.475 1.489 0.118 + or - 0.004

-924 1.706 1.720 1.734 0.118 + or - 0.004

-928 2.072 2.090 2.108 0.118 + or - 0.004

-932 2.319 2.337 2.355 0.118 + or - 0.004

Straight thread tube fittings sizes

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