Spi 19-469-6 Class Zz Minus Plug Pin Gage 0.469 in

Product Description

The SPI 19-469-6 is a Class ZZ minus plug pin gage used to verify bore and hole diameters in precision machining and inspection workflows. It measures 0.469 inches in diameter and is manufactured from steel for durability and dimensional stability under repeated use. The minus designation means the gage is ground to the lower tolerance boundary, making it suitable for go/no-go inspection applications where controlled fit verification is required. Machinists, quality control technicians, and toolroom professionals use this gage to confirm that drilled, reamed, or bored holes meet dimensional specifications before parts advance through production.

This plug pin gage is used in manufacturing, fabrication, and inspection environments where hole diameter accuracy is critical. It is well suited for use on CNC machined parts, castings, and fabricated components requiring tight tolerance verification. The 0.000200 inch tolerance class makes it appropriate for general-purpose inspection tasks governed by ASME or equivalent gage standards. It is commonly used at inspection stations, on the shop floor, and in toolrooms handling production or job-shop work.

Key Features

• Class ZZ minus tolerance designation for go/no-go inspection use
• 0.469 inch nominal diameter for direct bore verification
• Steel construction for wear resistance and dimensional stability
• 0.000200 inch tolerance for controlled, repeatable measurements
• Compact single-piece gage format suitable for bench and floor use

Compatibility

Designed as a direct-use plug pin gage for any application requiring inspection of 0.469 inch diameter holes or bores in accordance with Class ZZ gage standards.

Installation Notes

Plug pin gages require no installation but should be handled with clean, dry hands or cotton gloves to prevent corrosion from skin oils. Before use, verify that the gage and workpiece are at the same ambient temperature to avoid thermal expansion errors. Clean the gage and bore with a lint-free cloth before each inspection pass. Store the gage in a protective case away from other tooling to prevent contact damage to the precision-ground surface.