Model: 142-56
Master Precision LevelProperties:
A precisely calibrated instrument used as a master reference standard to establish an absolute horizontal plane. The metal base is seasoned and heat treated or otherwise specially treated to insure maximum stability, and is accurately machined and scraped to the true plane on the contact surface. The top plate is of nonconductive heat insulating material. It has a very sensitive vial graduated to indicate a variation of 0.0005 inch (0.0127 mm) per foot (0.3048 m) in a horizontal plane. It may have a cross level vial to assist in setting the true horizontal by showing position laterally.
Part 142-56 NSN 5220-00-782-1908
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
Freight Classification
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Schedule B and Export
- Schedule B: 9031808080
- SITC: 87425
- End Use: Measuring, testing, control instruments
- NAICS: 334515
- USDA: 1
Freight Class: Other measuring or checking instruments, appliances and machines, nesoi in chapter 90
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