ISO 6149-4:2006.

Title:
Connections for fluid power and general use – Ports and stud ends with ISO 261 metric threads and O-ring sealing – Part 4: Dimensions, design, test methods and requirements for external hex and internal hex port plugs, 10 pgs.

Scope:
This part of ISO 6149 specifies dimensions and performance requirements for external hex and internal hex port plugs for use with ISO 6149-1 ports. Port plugs in accordance with this part of ISO 6149 can be used at working pressures up to 63 MPa (630 bar). The permissible working pressure depends upon the plug end size, materials, design, working conditions, application, etc. Conformance to the dimensional information in this part of ISO 6149 does not guarantee rated performance. It is necessary that each manufacturer perform testing according to the specification contained in this part of ISO 6149 to assure that components comply with the performance ratings.