DI-EDRS-80410

Engineering Documentation Information

The Engineering Documentation Information DID defines four record types (Document Description Record, Part Description Record, Structure Record, and Manufacturer's Description Record) used to build an engineering data base.

Approval DateAugust 11, 1987

AMSC NumberG4179

Preparing Activity—

Project Number—

OPRG/Y223

DTIC Applicable—

GIDEP Applicable—

Limitation—

Applicable Forms—

Approval Limitation—

Form VersionJUN 86

DID Formatdd_form_1664

963C CompliantNo

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

Supersedes

DI-E-5331D

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Description & Purpose

3.1 The Engineering Documentation Information contains four distinct types of records. They are the Document Description Record (DDR), the Part Description Record (PDR), the Structure Record (STR) and the Manufacturer's Description Record (MDR).

3.2 The Engineering Documentation Information is used to build an engineering data base.

Application & Interrelationship

7.1 This data item description (DID) contains the format and content preparation instructions for the data product generated by the specific and discrete task requirement for these data included in the contract.

7.2 This DID is applicable to the acquisition of systems and equipments.

7.3 This DID supersedes DI-E-5331D.

Use & Relationship

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Preparation Instructions

1Reference documents.The applicable issue of the documents cited herein, including their approval dates and dates of any applicable amendments, notices, and revisions, shall be as specified in the contract.

2Specific instructions:

2.1One DDR shall be prepared for each drawing, (assembly, subassembly, or part), standard, or other documents used in the fabrication or maintenance of the equipment.

2.2One PDR shall be prepared for each assembly or part.PDR shall not be prepared for reference documents.

2.3One STR shall be prepared for each application of each item used in the fabrication, operation, or maintenance of the equipment.

2.4At least one MDR shall be prepared for any part or assembly that is an Altered Item (TYPDWG=A in the DDR), Selected Item (TYPDWG=V in the DDR), Source Control (TYPDWG=S in the DDR), or a Specification Control Item (TYPDWG=C in the DDR).Additionally, an MDR shall be prepared for any part or assembly that is a Design Control Repair Part (TYPDWG=D in the DDR) that has a suggested source of supply.

3Content requirements:

3.1Document description record.The record shall contain any of the following data that applies to the document:

3.1.1DOCNUM - Document number.The DOCNUM is the unique number used to identify that document.

3.1.2CODIDT - Code identification.Enter the appropriate code for the Contractor and Government Entity (CAGE). The codes are found in the Federal Supply Code for Manufacturers Handbook, H4-1 and H4-2.

3.1.3PLCLASS - Parts list classification.PLCLASS is a one letter code, applicable only to assemblies, representing the classification of the parts lists for the document. ("T" for top secret, "S" for secret, "C" for confidential, and "U" for unclassified.)

3.1.4PLRLEV - Parts list revision level.The PLRLEV is a one or two letter code representing the parts list revision level.

3.1.5REVLEV - Revision level.The REVLEV is a one or two letter code representing the graphics revision level.

3.1.6NUMSHT - Number of sheets.NUMSHT is a one to three digit value representing the total number of sheets of a document with a document number beginning with '0N'. (When the numbering of engineering documentation uses 0N, the character 0 is a numeric character.)

3.1.7RIGHTS - Rights.Rights is a single letter code representing the Government's rights to a document, ("L" for limited and "U" for unlimited).

3.1.8DWGSIZ - Drawing size.The DWGSIZ is a one letter code representing the dimensions of the drawing in accordance with 101.1 of DOD-STD-100.

3.1.9SECDWG - Security classification of drawing.SECDWG is a one letter code representing the classification of the document, (T, S, C, or U).

3.1.10TITDOC - Title of document.The TITDOC is a description of the document, as it appears in the title block of the document. Document titles shall be limited to 23 characters in length. Abbreviations in accordance with MIL-STD-12 shall be used.

3.1.11TYPDWG - Type of drawing.TYPDWG is a one letter code describing Control drawings. The codes are: A - Altered Item V - Selected Item S - Source Control C - Specification Control D - Design Control Repair Part (NOTE: TYPDWG=D applies only to parts or assemblies which have a suggested source of supply and are not Altered, Selected, Source, or Specification Control Items.)

3.1.12MRVLEV02-MRVLEV99 - Revision levels for multisheet documents.MRVLEV02 through MRVLEV99 are one or two letter codes representing the revision levels for the second through the ninety-ninth sheets respectively of a multisheet document.

3.2Part description record.The record shall contain all of the following data as it applies to the part or assembly.

3.2.1DOCNUM.(see 10.3.1.1)

3.2.2PRTDSC - Part description.The PRTDSC is a description of the part as it appears in the title block or field of the document. Part descriptions shall be limited to 23 characters in length. Abbreviations in accordance with MIL-STD-12 shall be used.

3.2.3MNTNON - Maintenance/non-maintenance.MNTNON is a one letter code, M or N. M - Maintenance Part - A maintenance part is defined as any part or assembly which needs no further fabrication of finishing prior to replacing the part. Maintenance parts include all assemblies, all electrical components, all name, warning, and instruction plates, finished brackets, and fasteners. (NOTE: An exception to these rules is wire. Wire which must meet special requirements and or specifications will always be coded as a Maintenance Part, MNTNON=M.) N - Non-Maintenance Part - A Non-Maintenance Part is defined as any part which must be further finished prior to replacement such as unfinished brackets which must be welded or drilled, bare printed wiring boards, or bulk material such as solder.

3.2.4PRTNUM - Part number.The PRTNUM is the unique number used to identify the part. In the event that specifications do not provide guidelines for assigning the part number, contact the contracting officer.

3.2.5SECPRT - Security classification of part.SECPRT is a one letter code applicable only to NSA assemblies and parts, (i.e. 0N DOCNUM) representing the security classification of the part. (T, S, C, or U).

3.3Structure record.The record shall contain any of the following data that applies to the part of reference document.

3.3.1DOCUSE - Document use code.DOCUSE is a two letter code which indicates whether the STR is for an assembly, subassembly, piece part, or a reference document. The Document Use Codes that will be used are in Table I.

3.3.2DOCNUM.(see 10.3.1.1)

3.3.3NXTASY - Next (higher) assembly.For a part or assembly, the NXTASY is the part number (PRTNUM) of the next higher assembly. For any reference document, the NXTASY is the document number (DOCNUM) of the drawing that references the reference document. For top assemblies, the NXTASY is the part number prefixed by the two letter code 'DL'. (see 10.5)

3.3.4UNITSS - Units.UNITSS is a two letter code, applicable only to parts (piece parts and assemblies), representing the units of measurement for the part. EA - EACH FT - FEET IN - INCHES LB - POUNDS CM - CENTIMETERS MR - METERS KG - KILOGRAMS AR - AS REQUIRED

3.3.5QTASY - Quantity in (next) assembly.QTASY is a one to four digit number, applicable only to parts, representing the number of units of the part used in the next higher assembly.

3.3.6PRTNUM - Part number.(see 10.3.2.4) (NOTE: Structure Records for Reference Documents do not have a PRTNUM.)

3.3.7FNDNUM - Find number.FNDNUM is the find number of the part as it appears on the drawing of the next higher assembly.

3.3.8REFDES - Reference designators.The REFDES are the reference designators for the part or assembly as they appear on the drawing of the next higher assembly. (NOTE: One unique reference designator shall exist for each occurrence of the part or assembly on the next higher assembly (e.g. If a resistor is used ten times in an assembly (i.e. QTASY=10) then there will be ten Reference Designators, (R1, R2, --, R10)).)

3.4Manufacturer's description record.The record shall contain the following data:

3.4.1PRTNUM - Part number.(see 10.3.2.4).

3.4.2VENCOD - Vendor code.The VENCOD is a five digit CAGE code identifying the manufacturer of the part. The codes are found in the Federal Supply Code for Manufacturers Handbook, H4-1 and H4-2.

3.4.3MFRPRT - Manufacturer's part number.The MFRPRT is the unique number used by the manufacturer to identify the part.

4Formal requirements.

4.1The data required shall be on one magnetic tape that conforms with Federal Specification W-T-0051 requirements.The tape shall be on a 9-track tape drive at a density of 1600 BPI. EBCDIC character code with odd parity shall be used. Each logical record shall be 258 characters long with 20 logical records per physical record, (i.e. 5160 characters per physical record). There shall be no internal tape marks. The tape shall be marked externally indicating the above specifications including which of the following formats are used.

4.2Document Description Record (DDR):POSITION - FIELD NAME - COMMENT 1 - (blank) - enter '1' 2-21 - DOCNUM - left justify 22-26 - CODIDT - left justify 27 - PLCLASS - 28-29 - PLRLEV - left justify 30-31 - REVLEV - left justify 32-34 - NUMSHT - left justify 35 - RIGHTS - 36 - DWGSIZ - 37 - SECDWG - 38-60 - TITDOC - 61 - TYPDWG - 62-257 - MRVLEV02-MRVLEV99 - left justify REVLEVs for sheet two in position 62-63, sheet 99 in position 256-257. MRVLEV100 and above shall be submitted as a supplementary listing. 258 - (blank) - blank

4.3Part Description Record (PDR):POSITION - FIELD NAME - COMMENT 1 - (blank) - enter '2' 2-21 - DOCNUM - left justify 22-44 - PRTDSC - left justify 45 - MNTNON - 46-65 - PRTNUM - left justify 66-85 - (blank) - blank 86 - SECPRT - 87-258 - (blank) - blank

4.4Structure Record (STR):POSITION - FIELD NAME - COMMENT 1 - (blank) - enter '3' 2-3 - DOCUSE - 4-23 - DOCNUM - left justify 24-43 - NXTASY - left justify 44-45 - UNITSS - 46-49 - QTASY - left justify 50-69 - PRTNUM - left justify 70-72 - FNDNUM - left justify 73-103 - (blank) - blank 104-258 - REFDES - left justify the first partial reference designator (PRD) in positions 104-108, the second PRD in positions 109-113, etc., through the thirty first PRD in positions 254-258. The thirty second and above PRD shall be submitted as a supplemental listing.

4.5Manufacturer's Description Records (MDR):POSITION - FIELD NAME - COMMENT 1 - (blank) - enter '4' 2-21 - PRTNUM - left justify 22-26 - VENCOD - left justify 27-46 - MFRPRT - left justify 47-258 - (blank) - blank

5Special records.

5.1Each top assembly shall have the following special DDR prepared in addition to the regular DDR described in 10.3.1.DOCNUM = DOCNUM of top assembly prefixed by the two letter code 'DL' TITDOC = TITDOC of top assembly

5.2Each top assembly shall have the following special PDR prepared in addition to the regular PDR described in 10.3.2.DOCNUM = DOCNUM of top assembly prefixed by the two letter code 'DL' PRTNUM = PRTNUM of top assembly prefixed by the two letter code 'DL' PRTDSC = PRTDSC of the top assembly

References

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Figures

Figure Table I. Document use codes

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