Thread Ring Gauge Tolerance Chart

Thread ring gages are available in acme straight pipe and taperpipe styles.

Thread ring gauge tolerance chart. This calculator will determine the gage class and tolerance per ansi asme b89 1 5 for cylindrical i d and o d. Thread classes for product threads and by extension the gages used to inspect them can become a bit of alphabet soup. Tolerance direction cylindrical ring gage go member is to the minus side nogo member is to the plus side. Diameter tolerance chart reference ansi asme b89 1 5 diameter range above including.

Tolerances engineering design limits fits. Standard pitch diameter chart 17 precision gages for quality assurance ring thread gages and setting plugs nominal size x tol. Thread plug gages nominal size go basic all classes all series unified pitch diameters not go x tol go no go xleadtol. 3b 0 80 unf 0519 0542 0536 0002 0002 0 30 1 64 unc 0629 0655 0648 0002 0002 0 30 1 72 unf 0640 0665 0659 0002 0002 0 30 2 56 unc 0744 077.

The confusion generates questions and assumptions. Ref pitch diameter go plug gage 6h tolerance pitch diameter not go plug gage 6h tolerance mm in. Cylindrical plug gage go member is to the plus side nogo member is to the minus side. Gage tolerance calculator asme b89 1 5 pin and ring gauges.

Some find the requirements confusing. Suggested gage tolerance is calculated using the 10 product tolerance rule. If 2a is for an external thread why does it apply to the thread setting plug. Thread ring gages also referred to as thread ring gauges are used to check the outside major diameter and pitch diameter limits on threaded parts.

Metric thread gages standard pitch diameter chart 14 nominal size pitch pitch diameter go ring gage 6g tolerance pitch diameter not go ring gage 6g tolerance for external thread for internal thread mm in. Why am i unable to order a class 6h m series metric thread ring gage. Free technical support from our knowledgeable engineering team with over 100 years experience. Buy with confidence with westport 100 satisfaction guarantee.