Mitutoyo 614205-531 Square Steel Gage Block 5 in Grade 0

Product Description

The MITUTOYO 614205-531 is a square steel gage block with a nominal size of 5.00000 inches, manufactured to Grade 0 accuracy. Gage blocks serve as dimensional reference standards used to calibrate measurement instruments, set comparators, and verify the accuracy of precision machined parts. This block is constructed from steel and meets ASME standards for dimensional tolerance at the Grade 0 classification. Each unit ships with a Certificate of Inspection, confirming it has been individually verified against stated dimensional specifications. Metrologists, quality technicians, and precision machinists rely on blocks at this grade for inspection and calibration work in shop and laboratory environments.

This gage block is suited for use in quality control labs, tool rooms, and precision manufacturing settings where a 5-inch reference standard is required. Typical applications include setting height gages, calibrating measuring instruments, and establishing reference datums during inspection of large or medium-scale machined components. The Certificate of Inspection included with each block supports traceability requirements common in ISO and ASME-compliant quality systems.

Key Features

• Grade 0 accuracy classification per ASME standards for tight dimensional tolerance
• Nominal size of 5.00000 inches for use as a precision dimensional reference
• Steel construction for durability and dimensional stability
• Includes Certificate of Inspection for traceability documentation
• Square form factor for versatile setup and stacking applications

Compatibility

Designed as an OEM-style precision reference standard compatible with standard gage block accessories, holders, and wringing sets used in ASME-compliant metrology and inspection workflows.

Installation Notes

Gage blocks are handled and set up by quality technicians and metrologists rather than installed in a mechanical system. Blocks should be stored in a clean, temperature-stable environment and handled with lint-free gloves to prevent corrosion and contamination of the lapped surfaces. Before use, allow the block to thermally stabilize to the measurement environment, as steel expands and contracts with temperature changes. Clean mating surfaces before wringing blocks together to avoid surface damage.