SOW Attach F-IPC-IPB.pdf

March 18, 2020

ATTACHMENT F

ILLUSTRATED PARTS CATALOG/ILLUSTRATED PARTS BREAKDOWN

1. Reference: MIL-DTL-38807D

2. Purpose: This document shall contain the parts information with illustration for depot and organizational maintenance.

3. Document arrangement:

a. Introduction

b. Chapter 1 – Foreword

c. Chapter 2 - Maintenance Parts List (MPL)

d. Chapter 3 - Numerical Index

4. Arrangement details:

a. Introduction shall at a minimum have a title page identifying Engine series, date of last data verification, listing of any related documentation, and table of contents and list of illustrations.

b. Chapter 1 shall provide all engine models covered, definition of any symbols, usable on codes, abbreviations and acronyms, CAGE/manufacturers list, and any if needed information to help interpret contents i.e. footnotes.

c. Chapter 2 Maintenance Parts List (MPL)

i. Illustrations shall be provided to identify listed parts. Illustrations shall show the relation of a component to the end item. When identical parts appear in the same relative location, ie bolt, only one needs to ne illustrated. Exploded views shall be used to portray disassembly sequence clearly or to identify parts rapidly. Every effort shall be made to limit the number of parts shown on an illustration, so that no more than one page/graphics view is required.

ii. Main groups/main assemblies. When the MPL is divided into main groups or major assemblies of the end item, the first illustration shall portray this information with a key to the main groups or major assemblies.

iii. Functional systems. A functional system shall be illustrated in a manner that permits the individual assemblies of the system to be readily located in the MPL.

iv. Exploded views shall be used when necessary to clearly portray all indexed components

v. Subassemblies. All the detail parts of each subassembly contained in any one assembly shall be shown on one illustration. When space limitations prohibit this requirement, a subassembly shall be illustrated completely assembled on the assembly illustration, and a separate exploded view of the subassembly used. In both descriptions of the subassembly (where listed assembled and where listed with detail parts), there shall be a cross-reference to the other illustration.

vi. Attaching parts. Illustrations of attaching parts shall only be exploded when disassembly/assembly procedures merit explosion because of complexity. When the attaching parts at a specific location are not visible in an illustration (a top view may show the bolts and washers above, but not the washers and nuts beneath), an index number shall be assigned to each item, and all index numbers shall be shown with one leader line terminating on the visible part(s).

vii. Indicating relationship. When unlisted parts are illustrated to show relationship, the unlisted parts shall be toned down, or shown in phantom, to give emphasis to listed parts.

viii. Index numbers. Each illustration shall have index numbers beginning with

1. Any suitable method which will effectively identify a part may be employed, such as use of leader lines, index number directly on a part, etc.

Index numbers must agree with those shown in the listings.

ix. Figure titles and numbering. Illustrations shall be assigned figure titles and logical figure number.

x. Format. The parts listing shall be considered part of the associated figure, and shall not be separately labeled. The width of the columns (description column excepted) shall be adjusted to accommodate the information to be inserted in each; the remaining space shall form the description column.

Parts shall be listed to show parts relationship and in the sequence of disassembly, except where that sequence cannot be maintained.

xi. Columns:

1. Figure & Index/Sheet no. This column shall list applicable figure, index, and sheet numbers. The figure and index numbers shall be separated by two spaces. The index and sheet numbers shall be separated by a slash (/). Example; Figure 12, index 1, on sheet two of the illustration would be listed as "12 1/2" Contractor shall ensure that the index numbers in the parts list are in sequence.

When the same part appears more than once on an illustration, and is part of different assemblies or subassemblies, or it is otherwise necessary to list it more than once, each listing shall be assigned a different index number. An index number shall not be assigned to an assembly when the detail parts are indexed unless the assembly is shown completely assembled on the same illustration, or a bracket or circle shows which parts comprise the assembly.

a. Index numbers for attaching parts. When a group of parts

(bolt, washer, nut) is used at a specific location for attachment purposes, each part shall be assigned a separate index number.

FIGURE

& INDEX/

SHEET NO

PART

NUMBER

CAGE

DESCRIPTION

UNITS

PER

ASSY

USEABLE

ON

CODE

SMR

CODE

b. Sheet numbers. Sheet numbers shall be used only with multi-sheet illustrations. When an indexed item appears on more than one sheet of the illustration, the first and last sheet number on which the item appears shall be listed.Parts which are not illustrated.

c. Parts which are indexed in the listing, but are not shown on the illustration (e.g., attaching parts which are not exploded) shall have a dash (-) preceding the index number

(e.g., -47). Chapter 1 shall include an explanation that the symbol denotes a part which is not illustrated.

2. Part number column. This column shall contain part numbers, including dash numbers, assigned to each listed part in accordance with current industry engineering practices. Only the preferred or master part shall be listed. As applicable, part numbers for prime contractor, subcontractor, vendor, commercial parts, and standard

(government, contractor and industry) parts shall all be listed.

When a component is identified only by a model or type number, the number shall be used in lieu of a part number. Numerical footnotes will be allowed in the part number column with explanations located at the end of the MPL (table).

3. CAGE column. The appropriate CAGE code, published in current issues of H4/H8 Cataloging Handbooks, shall be listed in this column directly opposite each part, model, or type number listed in the part number column. The CAGE code shall identify the design activity whose number appears in the part number column.

a. CAGE code not listed in H4/H8. When a CAGE code for the appropriate design activity is not published in the current issues of the H4/H8 Cataloging Handbooks, the word "none" shall be inserted in the CAGE column directly opposite the part, model, or type number listed in the part number column.

4. Description column. This column shall contain the description of each part listed. The nomenclature appearing in the title block of the drawing, to which the detail part was manufactured, shall be used. Incomplete nomenclature (e.g., noun only) of detail parts, appearing in the body of an assembly or installation drawing, shall not be used. When necessary, the size, dimensions, material, and tolerances for a part shall be indicated to make the description complete. The description shall be arranged to show the following:

a. The identifying noun shall be the first word. When the part is identified as a Hardness Critical Item (HCI) or

Electrostatic Discharge Sensitive (EDS), the HCI, and

ESDS markings, as appropriate, shall precede the first word. When the listing is an assembly or installation, the word "assembly" or "installation" shall follow the noun. A comma shall separate these words from the balance of the description.

b. The item name (including the word "assembly" or

"installation") shall be in upper-case. The first letter of the first word following the item name shall be in upper-case;

remaining words shall be in lower-case. The first letter of proper nouns, regardless of location, shall always be in upper-case.

c. When units of measurement are the same, they shall not be repeated with each dimension; example: 1/8 by 3/4-inches

(not 1/8-inch by 3/4-inch). To avoid confusion, a dash shall be used between a whole number and a fraction; example:

1-1/16, 2-3/4, 4-9/64. Dashes may be omitted if fraction characters (e.g., ½, ¼) are used. When a decimal with a value of less than 1.0 is given, a zero shall precede the decimal point; example: 0.002-inch.

d. The appropriate numbers for the type, model, specification, specification control drawing, and the source control drawing shall follow the nomenclature. When the drawing number for a part is different than the part number

(excluding dash number differences), the drawing number shall follow the description. When a part is authorized for local manufacture, and a specific drawing is required for such accomplishment, the drawing number shall follow the description.

e. The requirements of ASME-Y14.38-2007, Abbreviations and Acronyms for Use on Drawings and Related

Documents, apply to the use of abbreviations.

f. Leader points (a series of periods) shall be used to join the description and the next column to the right. When the description requires more than one line, leader points shall be used on the first line only. Leader point spacing shall be at least double-spaced.

g. Reference to another illustration for information on the detail parts of an assembly and reference to another illustration for information on the next higher assembly shall be made.

h. When the word "none" is listed in the CAGE code column, the complete name and address of the design activity, whose part, model, or type number appears in the part number column, shall be shown in parentheses at the end of the description. When several CAGE codes are not available, or the design activity’s name and address must be repeated several times, numerically identified footnotes may be used in the CAGE column and identified at the end of the MPL and in Chapter 1.

i. Indentation. The description for parts listed shall be indented to indicate relationship. The indentation shall be indicated by leader points, each point shall signify each indentation. When the description exceeds one line, the second (and succeeding lines) shall be indented two additional indentations from the first line.

Description

END ITEM, COMPONENT, MAJOR ASSEMBLY

. DETAIL PARTS FOR END ITEM, COMPONENT, MAJOR ASSEMBLY

. ASSEMBLY

. Attaching parts for assembly (AP)

. . Detail parts for assembly

. . Subassemblies

. . Attaching parts for subassemblies (AP)

. . . Detail parts for subassemblies

. . . Sub-subassemblies

. . . Attaching parts for sub-subassemblies (AP)

. . . . Detail parts for sub-subassemblies

5. Units per assembly column. The column shall show the following:

a. Quantity required for each detail part in an assembly.

b. Quantity required for each assembly in the next higher assembly.

c. Quantity required for each attaching part to attach one unit or one assembly.

d. The abbreviation "AR" for oversize and undersize parts and

"as required" for parts when quantities are indefinite.

e. The abbreviation "REF" where items are listed for reference purposes. Such items shall show a quantity where the item is listed assembled, or listed in detail, and show

"REF" in other listings.

f. The quantity shall be listed opposite the first line of the description when the description requires more than one line.

6. Useable on code column. This column shall contain codes to indicate the configurations (type, model, series, blocks, etc.) of the end items to which listed assemblies and parts apply. When a part applies to all configurations, no code is required in this column;

likewise, when the manual covers only one configuration, no coding system is required. The coding system shall consist of letters of the alphabet beginning with single letters, A through Z, and when necessary, continue with double letters, AA through AZ, BA, through BZ, etc.

a. Useable on code. The meaning of Useable on Codes, if used, shall appear at the end of each MPL (for each figure) in the description column (see figure7). Example: CODE

USEABLE ON

i. Aircraft Number/Serial Number through Aircraft

Number/Serial Number

ii. Aircraft Number/Serial Number through Aircraft

Number/Serial Number before TCTO XX-XX-

XXX

iii. Aircraft Number/Serial Number through Aircraft

Number/Serial Number after TCTO XX-XX-XXX

7. SMR code column. If known, this column shall contain the Joint

Military Services Uniform SMR codes assigned by the government and furnished by the acquiring activity.

d. Chapter 3 Numerical Index.

i. The numerical index shall contain the part numbers of all parts listed in the MPL with their location within the MPL, including model and type numbers for components not assigned part numbers. If assigned to a part number an National Stock Number (NSN) shall be provided.

ii. The numerical index shall be arranged in the following format.

1. Part number column arrangement shall begin at the extreme left and continue from left to right, one position at a time. For the first character of the part number, the letters A through N and P through

Z take precedence over the numerals, 0 through 9. (Alphabetic Os are considered numeric zeros). For the second and succeeding characters of a part number, precedence is as follows: (1) diagonal,

(2) period, (3) dash, (4) letters A through N and P through Z, (5) numerals 0 through 9.

2. Figure & index column shall contain the figure and index number(s) for all parts listed, as applicable. When an assembly or part has not been assigned an index number, the figure and index number of the preceding part in the MPL shall be used with the letter "F" before the figure number, such as F7-6. Chapter 1 shall include an explanation that the letter "F" means "follows".

3. NSN column shall list NSN if assigned to the part number and will follow XXX-XX-XXXX format.

Part Number Figure &

Index

NSN Part Number Figure &

Index

NSN