Vermont Gage 111431450 Class Zz Minus Plug Pin Gage

Product Description

The VERMONT GAGE 111431450 is a Class ZZ minus plug pin gage machined from steel and used for NoGo inspection work in dimensional measurement applications. It measures 0.3145 inches in diameter with a tolerance of 0.0002 inches and an overall length of 2 inches. The minus designation indicates the gage is ground to the lower boundary of the Class ZZ tolerance band, making it suited for NoGo go-gage inspection protocols. Each unit ships with a Certificate of Accuracy with NIST traceability, confirming the gage has been verified against national standards. Machinists, quality technicians, and metrology professionals install and use this type of gage in production and inspection environments.

This plug pin gage is designed for NoGo inspection applications and is also compatible with setting and checking micrometers, verniers, and other precision measuring devices. It is appropriate for use in machine shops, manufacturing quality control departments, and tool rooms where tight dimensional verification is required. The 0.3145-inch diameter makes it suitable for checking bores, holes, and features at that nominal size. It is typically used as part of a complete gage set covering both Go and NoGo limits.

Key Features

• Class ZZ minus tolerance ground to 0.0002 inches for NoGo inspection use
• 0.3145-inch diameter measurement with 2-inch overall length
• Steel construction for durability in production inspection environments
• 10 microfinish surface coating for consistent, repeatable contact
• Includes Certificate of Accuracy with NIST traceability

Compatibility

Designed for NoGo inspection use and compatible with setting micrometers, verniers, and other precision measuring devices requiring a 0.3145-inch reference diameter.

Installation Notes

Plug pin gages are handled and stored by quality control technicians and tool room personnel. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the steel surface. Do not drop or strike the gage, as any impact can alter the ground diameter and invalidate the NIST-traceable certification. Recertify the gage periodically according to your shop quality management system requirements.