This SAE Standard was developed primarily for passenger car and truck applications for the sizes indicated, but it may be used in marine, industrial, and similar applications.
The purpose of this document is to provide dimensions for three fuel tank filler cap types (vented, nonvented, and pressure-vacuum), and the corresponding cap retainers. Use of these dimension preclude the use of a vented or nonvented cap with a pressure-vacuum cap retainer. In addition, these dimensions insure that a pressure-vacuum cap will not seal to a vented cap retainer. These dimensions will, however, allow the use of a pressure-vacuum cap on a nonvented cap retainer.
This document was revised in accordance with the scheduled five year review.