Spi 19-683-2 Class Zz Minus Plug Pin Gage 0.683 in

Product Description

The SPI 19-683-2 is a Class ZZ minus plug pin gage machined to a 0.683-inch nominal diameter with a tolerance of 0.0002 inches. Plug pin gages are precision measurement tools used to verify bore and hole dimensions by confirming whether a feature is within specified tolerance limits. The minus designation means the gage is ground to the lower end of the tolerance range, making it suitable for go/no-go inspection workflows. Constructed from steel, this gage delivers the dimensional stability and wear resistance required for repeatable inspection results on the shop floor or in a quality-control environment.

This gage is suited for dimensional inspection applications in manufacturing, machining, and quality assurance settings. It is used to check drilled, reamed, or bored holes for conformance to print specifications. Machinists, tool-and-die makers, and QC inspectors working with hole tolerances in the 0.683-inch range will find this gage appropriate for both production and incoming inspection tasks. Its compact form factor makes it practical for bench use or point-of-operation checks at the machine.

Key Features

• Class ZZ tolerance grade for general-purpose inspection applications
• Minus designation ensures gage is held to the lower end of the specified tolerance range
• 0.683-inch nominal diameter with 0.0002-inch tolerance for precise bore verification
• Steel construction provides durability and dimensional stability under repeated use
• Single-piece design requires no assembly and is ready for immediate use

Compatibility

Designed as an OEM-style replacement or direct-use plug pin gage for go/no-go inspection of 0.683-inch nominal diameter bores and holes in standard manufacturing and quality-control applications.

Installation Notes

Plug pin gages require no installation but should be handled and stored according to standard metrology practices to preserve calibration and surface integrity. Clean the gage and the bore being inspected before use to prevent debris from affecting measurement results. Do not force the gage into an undersized hole, as this can damage both the gage and the workpiece. Periodic recalibration against traceable standards is recommended to maintain measurement confidence over time.