National Item Identification Number
01-503-0346
015030346
7025-01-503-0346
7025015030346
National Stock Number
Item Name
TRACKBALL,DATA ENTRY
Federal Supply Class
7025
Description
A device which includes a sphere mounted in a small open-topped box. The sphere is hand-operated by rotating it in a backward, a forward, or a sideway direction while maintaining the device in a fixed location. The movement of the sphere generates a signal which may be used to move a cursor and/or tracking symbol on the face of a display, such as a cathode ray tube; to input data into an electronic system; and/or to control the operation of a system. It may or may not include additional input devices, such as switches or variable resistors.
Commercial and Government Entity Code (Supplier Data)
88898
JOHNS HOPKINS UNIVERSITY
DBA APPLIED PHYSICS LABORATORY
JOHNS HOPKINS RD 11100
LAUREL
MD
20723
240-228-6727
53711
Reference Numbers (Part Numbers)
PM225-PS/2+100749-D
7401233-001
Required Categories
III END ITEM IDENTIFICATION
Required Description
AN/UYQ-89 XN-1, AREA AIR COMMAND, DEFENSE SYSTEM