ISO/TC 22/SC 34/WG 9 - Piston Pins

This document defines the measuring principles used for measuring piston pins; it applies to piston pins with a nominal outer diameter from 8 mm up to and including 100 mm, for reciprocating internal combustion engines for road vehicles and other applications. In certain applications, except road vehicles, and provided that mutual agreement is made between the purchaser and the manufacturer, this document can be used with suitable modifications.

ISO 18669-1:2013 specifies the essential dimensional characteristics of piston pins with an outer diameter between 8 mm and 100 mm, for reciprocating internal combustion engines for road vehicles and other applications. In addition, it establishes a vocabulary, a pin-type classification, material description based on mechanical properties, common features and quality requirements.

ISO 18669-2:2004 defines the measuring principles to be used for measuring piston pins; it applies to piston pins from 8 mm up to and including 100 mm outside diameter for reciprocating internal combustion engines and compressors. In certain applications, except road vehicles, and provided that mutual agreement is made between the purchaser and the manufacturer, ISO 18669-2:2004 may be used with suitable modifications.