National Item Identification Number
00-001-1255
000011255
5220-00-001-1255
5220000011255
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)
19207
NSN (National Stock Number) 5220-00-001-1255, 5220000011255 NIIN (National Identification Number) 00-001-1255, 000011255
Part Numbers (Reference Numbers)
11638167
11638167
Required Categories
MATERIAL
DESIGN TYPE
ADJUSTABILITY
OVERALL OUTSIDE DIMENSIONS
VIAL TYPE
VIA
Required Description
ALUMINUM
SINGLE FACE
NONADJUSTABLE
5.000 IN. LG.O/A;0.560 IN. H
BUBBLE
1
S