PAI AN U-Cups are made to the dimensions of Military Drawing AN 6226.
Unit of Measure

Item #

Nominal I.D. (inches)

Nominal O.D. (inches)

Nominal C/S (inches)

N/A 1/8 N/A 3/8 N/A 1/8
N/A 3/16 N/A 7/16 N/A 1/8
N/A 1/4 N/A 1/2 N/A 1/8
N/A 5/16 N/A 9/16 N/A 1/8
N/A 3/8 N/A 5/8 N/A 1/8
N/A 7/16 N/A 11/16 N/A 1/8
N/A 1/2 N/A 3/4 N/A 1/8
N/A 5/8 N/A 7/8 N/A 1/8
N/A 1/8 N/A 1/2 N/A 3/16
N/A 3/16 N/A 9/16 N/A 3/16
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