Standard · AN (Aeronautical Standards Group, CAGE 88044)Updated 2026-10-01
AN23-13A
The '23' identifies the part as a Clevis Bolt. The '13' specifies the bolt's dimensions, including a grip length of 1/2 inch (0.500 in) and an overall length of 27/32 inch (0.844-0.85 in). The 'A' suffix indicates that the bolt shank is undrilled, meaning it does not have a cotter pin hole. AN stands for Army-Navy, a joint standard adopted before the services consolidated their hardware specifications. Governed by the AN standard series, administered by Aeronautical Standards Group.
Part number dissection
ANAN stands for Army-Navy, a joint standard adopted before the services consolidated their hardware specifications.
23-13The '23' identifies the part as a Clevis Bolt. The '13' specifies the bolt's dimensions, including a grip length of 1/2 inch (0.500 in) and an overall length of 27/32 inch (0.844-0.85 in).
AThe 'A' suffix indicates that the bolt shank is undrilled, meaning it does not have a cotter pin hole.
Specifications
Standard seriesAN
Specification ownerAeronautical Standards Group · CAGE 88044
Base codeThe '23' identifies the part as a Clevis Bolt. The '13' specifies the bolt's dimensions, including a grip length of 1/2 inch (0.500 in) and an overall length of 27/32 inch (0.844-0.85 in).
Finish / variantThe 'A' suffix indicates that the bolt shank is undrilled, meaning it does not have a cotter pin hole.
Acceptable alternates
AN23-13This variant has a drilled shank (with a cotter pin hole) instead of an undrilled shank, while maintaining the same base dimensions.
Confirm acceptability against your drawing before ordering.
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BTEK Components MFG LLC · Largo, FloridaPart data compiled and verified by BTEK's sourcing engine.