Spi 19-434-0 Class Zz Minus Plug Pin Gage 0.434 in

Product Description

The SPI 19-434-0 is a Class ZZ minus plug pin gage with a 0.434-inch nominal diameter, used to verify bore sizes and hole tolerances in precision machining and inspection work. The minus designation means the gage is made to the lower end of the tolerance range, conforming to Class ZZ standards for go/no-go gauging applications. Manufactured from steel, this pin gage carries a tolerance of 0.0002 inches, making it suited for dimensional verification tasks where consistent, repeatable measurement is required. Metrology technicians, machinists, and quality control inspectors rely on this type of gage to confirm that drilled, reamed, or bored holes fall within acceptable specification limits.

This pin gage is designed for use in manufacturing, machine shops, and quality assurance environments. It is well suited for incoming inspection, in-process checks, and final verification of parts requiring tight hole tolerances. The 0.434-inch diameter targets a specific bore size common in general mechanical and precision component production. A single gage is supplied per package, and it is intended to be used as a standalone go or no-go member within a complete inspection program.

Key Features

• Class ZZ tolerance grade for go/no-go plug gauging applications
• Minus designation conforms to lower tolerance boundary for accurate bore verification
• 0.0002-inch tolerance for precise dimensional inspection
• Steel construction for durability and wear resistance in shop environments
• 0.434-inch nominal diameter targets a specific bore specification

Compatibility

Designed as a standard plug pin gage for use in any inspection or gauging program requiring a 0.434-inch diameter Class ZZ minus member, compatible with standard pin gage handles and holders that accept this diameter range.

Installation Notes

Pin gages are handled by quality control technicians and metrology personnel. Before use, clean both the gage and the bore being inspected to remove chips, oil, or debris that could affect measurement accuracy. Handle pin gages carefully to avoid dropping or contact with hard surfaces, as this can alter the gage diameter and invalidate readings. Store in a protective case away from temperature extremes to maintain dimensional stability.