Published
Specifies the essential dimensional characteristics of a spark-plug type used with spark ignition engines. Tabulates major, pitch, and minor diameters for plug thread and connector thread. A figure illustrates shapes and reference quantities of concern. This third edition cancels and replaces the second edition (1979).
WITHDRAWN
ISO 3895:1979
PUBLISHED
ISO 3895:1986
90.93
Standard confirmed
Jun 29, 2026