IS 13170 : Part 1 : 2021 ( ISO 6149-1 : 2019)    

Connections for Hydraulic Fluid Power and General Use - Ports and Stud Ends with ISO 261 Metric Threads and O-Ring Sealing Part 1 Ports with Truncated Housing for O-Ring Seal ( Second Revision )

Technical Committee : PGD 36

Status : Active