Items are being coded as critical to insure source inspection will be performed at the point of manufacture, prior to material receipt by the us navy or other dod components. These items are piece parts or end items in support of vital military hardware necessary to sustain the successful mission of the ships, submarines, and shore stations of the us navy. Critical features including, but not limited to, dimensions, tolerances/clearances, electronic characteristics, and metallurgical properties will bespecified for government q ar (quality assurance representatives) to insure the highest possible degree of quality and reliability of these parts being delivered under navicp contracts
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.
Dept. of the Navy 
Republic of Korea Classification: Other storage units, nesoi
NSN 6650-01-100-3185
NSN 6150-01-398-0223
NSN 5905-01-577-7167
NSN 5996-00-573-1853
NSN 5999-01-544-3909
NSN 5990-00-070-9608
NSN 5996-01-218-5678
NSN 6650-01-522-0075
NSN 6320-01-451-0821
NSN 5925-00-350-1829
NSN 5935-01-487-1323
NSN 6620-00-006-6418