DLMS Data Dictionary

The Authoritative Resource for DLMS X12 Data Elements and Codes

This Data Dictionary is the authoritative reference for all data elements used across Defense Logistics Management Standards (DLMS) Implementation Conventions (ICs). It provides standardized definitions and technical specifications for DLMS and its underlying ANSI ASC X12 data structures.

What This Dictionary Provides:

  • Clear Definitions: Find the official business definition and purpose for every data element used in DLMS transactions.
  • Technical Specifications: Get the exact technical format, length, and structure for each element as it appears in an X12 transaction.
  • DLMS to X12 Mapping: Understand exactly how a DLMS business term maps to a specific X12 segment and element (e.g., "Ship-To Address" maps to N1*ST in the 511R transaction).

Who Should Use This Resource:

  • System Developers & Integrators: To correctly build, map, and test DLMS-compliant applications.
  • Logistics & Supply SMEs: To understand the precise meaning and proper use of data in our business processes.
  • Data Analysts & Managers: To ensure data quality, standardization, and interoperability across systems.

Key Implementation Notes:

  • Relationship to Implementation Conventions (ICs): This Data Dictionary is a reference tool that enhances and supports the DLMS Implementation Conventions (ICs); it does not replace them. For proper implementation, users must consult the detailed guidance and business rules contained within the applicable IC.
  • Governing Standards: All data elements are governed by the Accredited Standards Committee X12 (ASC X12) and the policies within DLM 4000.25, Defense Logistics Management Standards (DLMS). The ASC X12 is the governing source for X12, which is an electronic data interchange (EDI) standard.
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View ICSorted by ascending REF CODE X12 CODE NAME GENERAL CODE DEFINITION CODE DLMS NOTE
  888I N901 TN Transaction Reference Number A unique number generated by the original submitter of a pre-defined transaction and assigned to any pre-defined information exchange within the department of defense The transaction reference number retains its identity for the life of the generated transaction DLMS enhancement; see introductory DLMS note 4a.
  888I N901 XD Subsistence Identification Number Use to identify a brand name resale subsistence item
  888I N902
  888I N903
  888I N907
  888I N907-01 W7 Commercial and Government Entity (CAGE) Code Code assigned to establishments which either fabricates items of production and/or have design control of items procured by the federal government, or to identify certain military specifications or standards, and certain numbering systems developed by government agencies, panels or committees Use with N901 code MF to uniquely identify a manufacturer's part number.
  888I N907-02
  888I MEA01 CF Conversion Factor Use to identify the conversion factor to convert Federal Logistics Information Services (FLIS) National Stock Number (NSN) unit of issue quantity to Local Stock Number (LSN) unit of use quantity Use to identify the conversion factor associated with the new unit of issue.
  888I MEA03
  888I MEA04
  888I MEA04-01
  888I N101 KA Item Manager Use to indicate the government inventory manager Use to indicate the corrected inventory manager associated with the materiel.
  888I N101 SB Storage Area Use to identify the distribution depot/storage activity Use to identify the storage facility requiring data record changes.
  888I N103 10 Department of Defense Activity Address Code (DODAAC) Use to identify specific units, activities, and/or organizations DLMS enhancement; see introductory DLMS note 4a.
  888I N103 M4 Department of Defense Routing Identifier Code (RIC) Use to serve multiple purposes; supply source codes, inter-system routing codes, intra-system routing codes, and consignor (shipper) codes
  888I N104
  888I N106 TO Message To Use to identify the party to receive the transaction set Use with 2/N101/156 code SB to indicate the organization cited in N104 is receiving the transaction.
  888I LM01 DF Department of Defense (DoD) Executive department of the U.S. federal government charged with coordinating and supervising the U.S. Armed Forces and related functions and agencies.
  888I LQ01 93 Type of Storage Code Use to indicate the type of storage space and environment conditions to be maintained for an item during storage and shipment 1. Use to identify the new item type storage code. 2. DLMS enhancement; see introductory DLMS note 4a.
  888I LQ01 A9 Supplemental Data A distinctive identification of specific units, activities and organizations within the Department of Defense (DoD), commercial activities which enter into materiel and service contracts with the DoD and activities of other Federal agencies which maintain logistics support arrangements with the DoD 1. Use to identify supplemental address/data. 2. Future streamlined data; see introductory DLMS note 4c.
  888I LQ01 AJ Utilization Code Use to identify a specialized purpose of the transaction 1. Under DLSS, this is the first position of the document serial number. 2. DLMS enhancement; see introductory DLMS note 4a.
  888I LQ01 EF Correction or Change for Storage Item Records Code Use to identify the Storage item record correction or change code associated with the transaction Use to identify the type of change associated with the transaction.
  888I LQ01 EQ Controlled Inventory Item Code Use to indicate the security classification and/or security risk or pilferage control for storage and transportation of Department of Defense assets
  888I LQ01 FD Demilitarization Code Use to define the requirements for removal of the military characteristics of a weapon or munition and the type of demilitarization needed to meet those requirements
  888I LQ01 FE Shelf Life Code Use to identify the shelf-life code
  888I LQ01 FG Source Maintenance and Recoverability Code Use to provide the source, maintenance and recoverability data for reparable materiel DLMS enhancement; see introductory DLMS note 4a.
  888I LQ01 GQ Group Qualifier Code Use to identify the Materiel Management Aggregation Code (MMAC) for National Stock Number (NSN) to be managed by a specific manager (i.e., system, program, aggregation, selected FSC, technology group) Use to identify the MMAC for NSNs to be managed by a specific manager (i.e., system, program, aggregation, selected FSC, technology group). This is an Air Force-unique data element, meaningful to the Air Force only. Non-Air Force Components perpetuate without action. A data maintenance action was approved in version 5010. The approved code/name is “MAC-Materiel Management Aggregation code”. The code source is identified as the Air Force Manual (AFMAN) 23-110, Volumes 1 and 2.
  888I LQ01 COG Cognizance Symbol Use for internal Navy management purposes to classify items by technical program, type of fund, and to indicate the cognizant Inventory Control Point (ICP) and technically responsible command Use to identify the material cognizance symbol (COG) of the end item. Indicate NSL for non-stock numbered listed items. This is a Navy-unique data element meaningful to Navy only; Non-Navy Components are to perpetuate without action.
  888I LQ01 IMC Item Management Code Use to indicate whether an item of supply shall be subject to integrated management or shall be retained by the individual military service or other DoD Component for their management Use to identify the Item Management Code (IMC) for integrated material management. This is a Navy-unique data element meaningful to Navy only; Non-Navy Components are to perpetuate without action.
  888I LQ01 MCC Material Control Code Use to denote the expendability, repairability, recoverability, and cost category employed in the management of an item of supply within the Navy Use to identify the Material Control Code (MCC) for special inventory reporting. This is a Navy-unique data element meaningful to Navy only; Non-Navy Components are to perpetuate without action.
  888I LQ01 SMI Special Material Identification Code Use to categorize material on the basis of requirements for source or quality control; technical design or configuration control; procurement, stocking, and issue control; special receipt, inspection, testing, storage, or handling This is a Navy-unique data element meaningful to Navy only; Non-Navy Components are to perpetuate without action.
  888I LQ02
  888I SE01
  888I SE02
  888M ST01 888 Item Maintenance Use to submit, add/change/delete details to an existing catalog item
  888M ST02
  888M BGN01 04 Change Use to indicate Add, Change, Delete Item Characteristics Use to indicate Add, Change, Delete Item Characteristics.
  888M BGN02
  888M BGN03
  888M N101 41 Submitter Use to identify participating activity which submits proposed data directly to the DLA logistics information service for approval. The submitting activity may be the activity which originates the data, or an intermediate monitoring activity, e.g., DLA supply center, defense atomic support agency, through which the originating activity is required to submit its proposals to DLA logistics information service Use to indicate Submitting Activity Code (SAC) (FLIS DRN 3720)
  888M N101 FR Message From Use to indicate Activity Code From (ACF) Use to indicate Activity Code From (ACF)
  888M N101 O2 Originating Company Use to identify an activity authorized to input logistical tools and/or data directly or indirectly to the DLA logistics information service 1. Use to indicate Originating Activity Code (OAC) (FLIS DRN 4210).
  888M N103 AY Activity Code Use to identify specific entities responsible for cataloging or managing items in the Federal Catalog System (FCS) Use this code to indicate the Activity Code.
  888M N104
  888M N901 80 Charge Number Use to indicate Type of Change Code (TOCC) Use to indicate Type of Change Code (TOCC).
  888M N901 GP Government Priority Number Use to indicate the relative importance of a specific function, mission, project or program which requires item data support 1. Use to indicate Priority Indicator Code (PIC) (FLIS DRN 2867). 2. PIC is mandatory.
  888M N901 MZ Maintenance Request Number Use to indicate Maintenance Code.
  888M N901 SE Serial Number A value assigned for identification of an item
  888M N901 W2 Weapon System Number Identifies a three-position alphanumeric code used by the Defense Logistics Agency (DLA) within its Weapon System Support Program (WSSP). It is comprised of a two-position Weapon System Designator (WSD) and a one-position Service Code (SVC)/Activity Use to indicate the Weapons System Designator Code (FLIS DRN 3888).
  888M N901 NIN National Item Identification Number Used to differentiate each individual item of supply from all other items of supply 1. Approved for use in X12 version 5020. (FLIS DRN 4000) 2. NIIN is mandatory.
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