The -8 designation on a hose refers to its inside diameter of which value?

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Multiple Choice

The -8 designation on a hose refers to its inside diameter of which value?

Dash sizing on hoses is a code for the bore. The number after the dash represents the inside diameter in inches, using sixteenths of an inch. So a designation of -8 means 8/16 inch, which simplifies to 1/2 inch. That is the internal bore, not the outer diameter, which will be larger due to the hose wall and reinforcement. Therefore, the -8 designation corresponds to a 1/2 inch inside diameter. The other values listed would map to smaller dashes corresponding to smaller bores, not to -8.

Dash sizing on hoses is a code for the bore. The number after the dash represents the inside diameter in inches, using sixteenths of an inch. So a designation of -8 means 8/16 inch, which simplifies to 1/2 inch. That is the internal bore, not the outer diameter, which will be larger due to the hose wall and reinforcement. Therefore, the -8 designation corresponds to a 1/2 inch inside diameter. The other values listed would map to smaller dashes corresponding to smaller bores, not to -8.

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