7025-01-506-0770 DISK DRIVE UNIT Index 5998-01-506-0772 BACKPLANE ASSEMBLY

National Stock Number:
7025-01-506-0771

Federal Supply Class:
7025

National Item Identification Number:
015060771

Description:
DISK DRIVE UNIT

Detail:
An electromechanical item which accepts and systematically retains digital input data in such a manner as to facilitate the rapid recovery of stored information. The item may or may not consist of disk(s) some of which are removable, hard, removable disk packs, fixed disks, or removable flexible, each surface coated with a material susceptible to spot magnetization, integral writing, a drive motor and its mechanical linkage, and data translating heads for impressing on or removing from the disk surface data in digital form. The item is a component of an electronic computer. See also, MAGNETIC DRUM, DATA STORAGE; CORE MEMORY UNIT.


Manufacturer Information:
WD400IB52840WESTERN DIGITAL CORP


Techincal Specification:
DRIVE QUANTITY1
DRIVE SIZE3.50
ACCESS TIME IN MILLISECONDS21.0
DATA STORAGE CAPACITY40.00 GIGABYTES
DESIGN TYPEHARD DISK
INTERFACE TYPEEIDE
OVERALL HEIGHT1.028 INCHES MAXIMUM
OVERALL LENGTH5.787 INCHES MAXIMUM
OVERALL WIDTH4.000 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYHIGH PERFORMANCE HARD DRIVE
TRANSFER RATE IN MEGABYTES PER SECOND16.6
UNIT DESIGNINTERNAL
UNPACKAGED UNIT WEIGHT1.320 POUNDS


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