SECTION I INTRODUCTION - TM-11-5895-1146-24P0006

AIR FORCE

T.O. 31 S5-4-898-4

ARMY

TM 11-5895-1146-24P

MARINE CORPS

TM SL-4-08049A

SECTION I

INTRODUCTION

1-1.

SCOPE. This illustrated parts breakdown (IPB) lists and illustrates the parts for the MU-695/TYQ Disk Memory

Unit, which is manufactured by the Aerospace Division of Control Data Corporation, Minneapolis, Minnesota, in

accordance with contract number F19628-77-C-0185. The IPB is used for requisitioning, storing, issuing, and identifying

parts, and for illustrating assembly and disassembly relationships. At the end of this section is an illustration showing how

to use the illustrated parts breakdown.

1-2.

RELATED PUBLICATIONS. The following Navy manual contains information for equipment similar to that

covered by this illustrated parts breakdown.

SE600-AA-MMM-0 1 0/AN/UYH-3(V)

1-3.

SECTION I - INTRODUCTION. The introduction defines the IPB and explains how to use it.

1-4.

SECTION II - MAINTENANCE PARTS LIST (MPL). The MPL lists and illustrates all repairable and replaceable

assemblies installed at the time the disk memory units were manufactured. When an assembly or part (including vendor

items), which is different from the original assembly or part, is installed during the manufacture of later disk memory unit

configurations, that part is listed and coded (refer to Usable On Code description). When the original assembly or part

does not have continued application (no spares of the original were procured, or such spares are no longer authorized for

replacement), only the preferred assembly or part is listed. Also, when an assembly or part is installed during modification,

and the original does not have continued application, only the preferred item is listed. Interchangeable and substitute

assemblies and parts, subsequently authorized by the Government, are not listed in this manual. Such items (if any) are

identified by information available through the interchangeable and substitute (I&S) data systems (refer to T.O. 00-25-

184). Bulk and consumable items such as wire, insulating sleeving, and solder are not listed.

a. FIGURE & INDEX NUMBER Column. This column lists the numerically assigned figure number for each

illustration. On each figure, numerically arranged index numbers are assigned to aid in locating a part in the MPL and on

the associated illustration. Whenever possible, each figure is indexed in the order of disassembly. Included are attaching

parts (AP) which immediately follow the parts they attach. Sheet numbers for figures which are illustrated on two or more

sheets are formatted differently than those figures which are illustrated on one sheet. For example, 1/2-72 indicates that

the part indexed 72 is illustrated on sheet 2 of figure 1. If figure 1 was on one sheet, the entry would be 1-72. When all of

the pieces of an assembly are repairable or replaceable, the assembly is not assigned an index number.

b. PART NUMBER Column. This column lists the manufacturer's part numbers, and includes Government

standard parts; for example, AF, AN, MS, JAN, MIL, and USN. Parts which are used exactly as purchased; that is, in a

condition ready for installation, are listed by the manufacturer's part number, with the Control Data specification control

drawing number parenthetically following the nomenclature in the DESCRIPTION column. If *SELECT appears in the

PART NUMBER column, refer to table 2-1 for items selected during depot repair.

c. FSCM Column. The FSCM (federal supply code for manufacturers) column lists the five-digit vendor codes

for manufacturers and Government agencies. These vendor codes are found in cataloging handbooks H4-1, H4-2, and

H4-3, Federal Supply Code for Manufacturers. The FSCM code-to-name list (table 1-1) is in numerical sequence; the

FSCM name-to-code list (table 1-2) is in alphabetical sequence.

d. DESCRIPTION Column. This column contains the nomenclature for all Control Data or vendor piece parts

and assemblies. Following the nomenclature is a Control Data specification control drawing number (when a vendor part

number is listed in the PART NUMBER column). Indentation indicates the relationship of a part to the next higher

assembly. For example, a part shown in column 3 is part of the preceding next higher assembly shown in column 2

(excluding attaching parts for the next higher assembly). Attaching parts (AP) are listed immediately beneath the item to

be attached at the same indentation level, and precede any detail parts of that item.

e. UNITS PER ASSY Column. The quantity listed in the UNITS PER ASSY column is the total quantity used at

the indicated location. For piece parts indented and listed under assemblies, the quantities listed are those used per

assembly and do not necessarily reflect the total used per equipment. For attaching parts, the quantities listed are those

required to attach one unit or assembly. If REF is shown in the UNITS PER ASSY column, refer to the figure indicated in

the DESCRIPTION COLUMN. If AR (as required) is shown in the UNITS PER ASSY column. the quantity is indefinite.

1-1