National Item Identification Number
01-256-4339
012564339
5210-01-256-4339
5210012564339
National Stock Number
Item Name
PROTRACTOR,MECHANICS,BEVEL
Federal Supply Class
5210
Description
A measuring instrument commonly used in the machinist trade for setting or checking bevels, transferring angles, checking cutter clearance, laying out angles and scribing lines. Consists of a rotatable disk, graduated in degrees, mounted on a metal frame base, and an adjustable steel blade or scale which is locked in position by a thumb nut, or clamped by an eccentric stud. May also be equipped with one or two small auxiliary vernier scales which enable a more accurate reading. Excludes PROTRACTOR, ONE ARM; PROTRACTOR, TWO ARM; PROTRACTOR, THREE ARM.
Commercial and Government Entity Code (Supplier Data)
73030
Reference Numbers (Part Numbers)
GS20524-1
Required Categories
GENERAL CHARACTERISTICS ITEM DESCRIPTION
III END ITEM IDENTIFICATION
THE MANUF
Required Description
USED FOR MEASURING VALVE ANGLE RELATIVE TO THE APPLIED CURRENT TO THE PROPORTION