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 IC REF CODE X12 CODE NAME GENERAL CODE DEFINITION CODE DLMS NOTE DLMS MIN MAX
  511M N901 WP Warehouse Pick Ticket Number Use to identify the picklist control number assigned to identify a specific job for which materials are being requisitioned and assembled together in support of planned maintenance 1. Use to identify, or to modify, the picklist control number assigned to identify a specific job for which materiels are being requisitioned and assembled together in support of planned maintenance. 2. Cite the picklist control number in N903 due to field length. 3. Authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381. 1/30
  511M N901 PWC Preliminary Work Candidate Number Used for preliminary notification that an order for material (requisition) is being prepared for future submission to a supply source Applicable for DLA industrial activity support agreements 1. Use to identify a Requisition Alert Document Number. 2. Used by Navy Shipyards to associate the funded requisition modification with a previously submitted requisition alert. 3. Authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381. 15/15
  511M N902
  511M N903
  511M N907
  511M N907-01 43 Supporting Document Number Use to identify, track, and reference a document or transaction across various processes, including procurement, receipts, and maintenance 1. Use to identify the Special Program Requirement (SPR) transaction number. 2. Use with N901 code TN to identify the Special Program Requirement (SPR) transaction number and establish an audit trail between the draw-down requisition and the original SPR against which the requirement was established. 3. DLMS enhancement; see introductory DLMS note 3a. 1/30
  511M N907-01 55 Sequence Number A unique identifier assigned to an item, task, or process to denote its specific order or position within a larger sequence DLA Disposition Services uses in conjunction with the Disposition Services Container ID in N901 to identify the Disposition Services Container DTID Sequence Number. This is a sequential number assigned for the requisitioned DTIDs that make up a container. Only applicable if an entire container is requisitioned. Refer to ADC 466. 1/30
  511M N907-01 C7 Contract Line Item Number A number that identifies all items of supply or services in a contract Use with N901 code CT, to identify the associated contract line item number (CLIN), including the sub contract line item (SUBCLIN), or agreement line item number (ALIN), as appropriate. 4/6
  511M N907-01 IX Item Number Use to identify the map National Evacuation Order (NEO) Pack Line Number. 1. Use with N901 code W6 to indicate the Federal Supply Schedule Special Item Number. 2. DLMS enhancement; see introductory DLMS note 3a. 1/30
  511M N907-01 W1 Disposal Turn-In Document Number Transaction number under which material was shipped to a DLA Disposition Services Field Office 1. Use in conjunction with the requisition document number (N901 Code TN) when requisitioning a specific item from DLA Disposition Services. 2. When there is no Suffix Code (N907 Code W8), associated with the customer’s Document Number, enter the correlating DTID in the N907-02. If there is a Suffix Code, then enter the DTID in the N907-04. DLMS enhancement, see ADC 466.
  511M N907-01 W8 Suffix Use to identify supply transaction partial actions taken on the original document without duplicating or causing loss of identity of the original document number 1. Use with N901 code TN to identify the document number suffix. Use when the initial 511R transaction is identified as a referral order with BR02 transaction type code BN and is referring a quantity less than the original requisition quantity to another supply source, with the exception of a modifications from the supply source to a procurement activity. For these modifications, enter the suffix as shown in the procurement request; otherwise leave blank. 2. Also authorized on an Intra-Army basis with N901 code TN for identification of the post-post partial issue of materiel by Army Single Stock Fund activities when the initial 511R transaction BR02 transaction type code is A0 and BR06 action code is “J”. 3. Use with N901 Code F8 to identify the Prior requisition document number suffix if applicable. Authorized DLMS enhancement for BRAC IMSP only. Refer to ADC 352 and ADC 359. 4. When used in modification of the requisition alert (BR06=83), or when used in association with the Requisition Alert Document Number (Qualifier PWC, above), this will be the requisition alert document suffix. Use with BR02 Qualifier BN only. The requisition alert document number suffix is an authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381. 5. DLA Disposition Services uses on an intra-DLA basis for requisitions processed between the RTD Web Application and DLA Disposition Services. The RTD Web-sequentially assigned suffix code is used for open requisition quantity on externally submitted requisitions when required to establish separate requisition transactions to DLA Disposition Services by DTID Number and, when applicable, the associated DTID Suffix Code. Refer to ADC 466. 1/1
  511M N907-02
  511M N907-03 W1 Disposal Turn-In Document Number Transaction number under which material was shipped to a DLA Disposition Services Field Office 1. Use in conjunction with the requisition document number (N901 Code TN) when requisitioning a specific item from DLA Disposition Services. 2. When there is no Suffix Code associated with the customer’s Document Number, enter the correlating DTID in the N907-02. If there is a Suffix Code, then enter the DTID in the N907-04. DLMS enhancement, see ADC 466.
  511M N907-04
  511M N907-05
  511M N907-06
  511M PO102
  511M PO103
  511M PO104
  511M PO105 ES Estimated Use to indicate an estimated unit price for the nonstandard materiel.
  511M PO105 NC No Charge Use to indicate nonreimbursable (free issue) materiel. DLMS migration enhancement. This usage is comparable to Signal Code D or M.
  511M PO105 UM Price per Unit of Measure Use for intra-Air Force.
  511M PO106 A2 Department of Defense Identification Code (DoDIC) Use to identify specific types of ammunition and explosives, indicating both the item and its packaging 1. Use to identify ammunition items. 2. DLMS enhancement; see introductory DLMS note 3a. 4/4
  511M PO106 A4 Subsistence Identification Number Use to identify a brand name resale subsistence item 15/15
  511M PO106 FB Form Number A unique stock number associated with a specific Approved Code form 1. Use to identify the form stock number. 2. DLMS enhancement; see introductory DLMS note 3a. 1/30
  511M PO106 FS National Stock Number A number assigned under the federal cataloging program to each Approved Code United States Federal Item Identification 1. When the unit of use indicator is included (1/BR01/20=ZZ), the NSN ordered will be interpreted as a unit of use requirement so that the order may be processed against the associated DLA-assigned LSN. The requested quantity is expressed in the unit of use for the LSN in lieu of the unit of issue for the identified NSN. 2. Authorized DLMS enhancement under DLA industrial activity support agreement. 13/13
  511M PO106 FT Federal Supply Classification Use to identify the FSC of the nonstandard materiel when a part number is not available and materiel can only be ordered by description (e.g., non-NSN lumber products).
  511M PO106 MG Manufacturer's Part Number A number assigned by a manufacturer to an item of production 1. Use to identify nonstandard materiel. 2. May be used to identify the supplier-assigned part number when applicable to a DoD FedMall or GSA Advantage/Global internet order from a vendor catalog. Refer to ADC 1068. 1/48
  511M PO106 SW Stock Number Use to identify a unique identifier for a product in a warehouse or inventory system 1. Use to identify the local stock number (LSN). 2. Authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381. 13/13
  511M PO106 YP Publication Number Reference number assigned to a publication or catalog 1. Use to identify the publication stock number. 2. DLMS enhancement; see introductory DLMS note 3a. 1/48
  511M PO106 ZZ Mutually Defined Use to identify nonstandard materiel when all other authorized codes do not apply (includes management control numbers and locally assigned control numbers). May be used for legacy MILSTRIP-to-DLMS conversion when the translator cannot determine a more appropriate code.
  511M PO107
  511M PO108 CN Commodity Name Name or description of material item 1. Use with PO106 code FT to identify the materiel name or description. 2. Use to identify the FEMA Logistics Supply Chain Management System (LSCMS) Item Name. Refer to ADC 1306. 1/48
  511M PO108 JP Package Type Code Use to indicate Outside Continental United States (OCONUS) shipment Must use to indicate Outside Continental United States (OCONUS) shipment. When used, the paired data element 234 will cite 1 indicating that packaging must meet OCONUS specifications. 1/48
  511M PO108 ZB 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 1. Use only with 2/PO1/030 PO106 code MG to uniquely identify a manufacturer's (or supplier’s) part number. 2. May be used to identify the supplier CAGE when applicable to a DoD FedMall or GSA Advantage/Global internet order from a vendor catalog. 5/5
  511M PO109
  511M PO110
  511M PO111
  511M PO112 A3 Locally Assigned Control Number 1. Defense Medical Logistics Standard Support (DMLSS)/Theater Enterprise-Wide Logistics System (TEWLS) use to cite their Local Catalog Identification for subsequent use as the stock number applicable to receipt and inventory processing. Must be used with the manufacturer’s part number and associated CAGE cited above. 2. DLMS enhancement; see introductory DLMS Note 3a. Refer to ADC 322. 3. Under DLMS, field length is restricted to a maximum of 30 positions.
  511M PO113
  511M PO114 EN GTIN-13 1. This is the Global Trade Item Number (GTIN)-13. 2. DLMS enhancement. See introductory DLMS note 3a.
  511M PO114 UK GTIN-14 1. This is the Global Trade Item Number (GTIN)-14 2. DLMS enhancement. See introductory DLMS note 3a.
  511M PO114 UP GTIN-12 1. This Global Trade Item Number (GTIN)-12. 2. DLMS enhancement. See introductory DLMS note 3a. 12/12
  511M PO115
  511M DD01
  511M DD02 74 Demand Code Indicates to the management element of a distribution system whether the demand is recurring or non-recurring 1. Must use to identify, or to modify, the applicable Demand Code indicating whether the demand is recurring or nonrecurring. 2. Demand code added to the Referral Order (A4_) format by Approved MILSTRIP Change 44. 3. Stratification of quantity by demand code is a potential future DLMS enhancement; see introductory DLMS note 3a. 1/1
  511M DD03 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 1. Use to identify the applicable weapon system designator code. 2. DLMS enhancement; see introductory DLMS note 3a. 3/3
  511M DD04
  511M DD05
  511M DD06 71 Service and Agency Code Use to identify the Service or Agency that initiates or receives documentation related to supply, finance, procurement, etc. 1. Use with the stratified demand data. 2. DLMS enhancement; see introductory DLMS note 3a. 1/2
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