National Item Identification Number
01-322-3370
013223370
5220-01-322-3370
5220013223370
National Stock Number
Item Name
LEVEL,PRECISION,MASTER
Federal Supply Class
5220
Description
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.
Commercial and Government Entity Code (Supplier Data)
06848
Reference Numbers (Part Numbers)
2564562
Required Categories
ADJUSTABILITY
ADJUSTABLE CHARACTERISTICS
OVERALL OUTSIDE DIMENSIONS
SPECIAL F
Required Description
ADJUSTABLE
DEG OF PITCH
6 IN. LG X 5 IN. W X 5 IN. H
USED TO PRESET THE TABLE