National Item Identification Number
01-339-9475
013399475
5220-01-339-9475
5220013399475
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)
59042
BECHTEL PLANT MACHINERY INC.
DBA BECHTEL PLANT MACHINERY INC.
500 PENN CENTER BLVD
PITTSBURGH
PA
15235
412-829-8626
Reference Numbers (Part Numbers)
5619B16
Required Categories
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
CRITICALITY CODE JUSTIFICATION
Required Description
MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALI