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
  511R G6103 TL Telex An number to a particular telegraphy machine for routing printed messages 1/60
  511R G6103 TX TWX A number to a particular teletypewriter for routing message signals 1/60
  511R G6104
  511R G6105
  511R LX01
  511R N901 86 Operation Number Use to identify the Key Operation (KO) Number associated with the JO 1. Use to identify the Key Operation (KO) Number associated with the JO. 2. Authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381. 1/50
  511R N901 98 Container/Packaging Specification Number Use to identify the Disposition Services Container Identification (ID) which is a unique number that is generated at time of receipt that links multiple Disposal turn-in document (DTID) to one conta8iner DLA Disposition Services uses to identify the Disposition Services Container Identification (ID). DLA Disposition Services uses container ID on requisitions to link the DTID Number to the applicable container. DLMS enhancement; refer to ADC 466. 10/10
  511R N901 9R Job Order Number Use to identify Job Order (JO) Number 1. Authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381. 2. For DoD SLOA/Accounting Classification compliance the Job Order Number may be repeated as a Work Order Number (FA201 Qualifier WO). Refer to ADC 1043. 1/50
  511R N901 AN Associated Purchase Orders Use for cross-reference to the customer’s internal Purchase Order (PO) Number or other internal reference number 1. Use for cross-reference to the customer’s internal Purchase Order (PO) Number (one PO Number per requisition document number) or other internal reference number. When submitted, this value will be perpetuated to subsequent transactions. Authorized for DLA interface with the Exchange, NEXCOM, MCX, and non-DoD customers as required. (See ADC 473A and ADC 1465) 2. Use to identify the FEMA Logistics Supply Chain Management System (LSCMS) Distribution Order Number. Refer to ADC 1306. 1/30
  511R N901 CO Customer Order Number Use to identify the Customer Order Acceptance Record (COAR) applicable to the Job Order Number. 1. Use to identify the Customer Order Acceptance Record (COAR) applicable to the Job Order Number. 2. Authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381 (or as applicable). 5/5
  511R N901 CT Contract Number A standard unique identification of a DoD procurement contract (contract number) that specifically differentiates one contract from all other contracts Use to identify the procurement instrument identifier (PIID) of the ordering instrument associated with the FedMall/part numbered catalog order. 1/13
  511R N901 F8 Original Reference Number Use to identify the prior Requisition Document Number when re-requisitioning materiel subsequent to purchase of materiel from DLA Applicable for DLA industrial activity support agreements when re-requisitioning is due to storage activity denial or receipt of quality deficient materiel 1. Use to identify the Prior Requisition Document Number when re-requisitioning materiel subsequent to purchase of materiel from DLA. Applicable when re-requisitioning is due to storage activity denial or receipt of quality deficient materiel. 2. Authorized DLMS enhancement for BRAC IMSP only. Refer to ADC 352 and ADC 359. 1/30
  511R N901 IT Internal Customer Number Use to identify the submitter’s user identification when the submission is web-entered. Use to identify the DoD FEDMALL-generated customer identification or other authorized submitter of requisitions containing in-the-clear exception ship-to addressing. 1/30
  511R N901 KW Certification Use to identify Distribution Standard System (DSS) Personnel Code used which identifies the Inventory Control Point (ICP) individual who initiated the DLA Directed Materiel Release Order (MRO) via the DSS Super Materiel Release Order (MRO) Interface Use to identify DSS Personnel Code used to identify the ICP individual who initiated the DLA Directed MRO via the DSS Super MRO Interface. Use in post-post requisitions/referral orders (DLA CI Codes C01/C0A, CQ1/CQA). See introductory DLMS note 3e. 1/30
  511R N901 S5 Routing Instruction Number Use to indicate the DoD Routing Identification Code (RIC) Use to identify the DLA Output Routing Code used to identify the ICP individual who initiated the DLA Directed MRO via the Online Direct ICP to DSS MRO interface. Use in post-post requisitions/referral orders (DLA DIC C01/C0A, CQ1/CQA). See introductory DLMS note 3e. 3/3
  511R 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 1. Must use to identify the document number. 2. When used in the requisition alert (BR06=83), this will be the requisition alert document number. The requisition alert document number is an authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381. 14/14
  511R N901 W6 Federal Supply Schedule Number A reference to a long-term contract between the General Services Administration (GSA) and commercial companies that allows federal agencies to purchase supplies and services DLMS enhancement; see introductory DLMS note 3a. 5/5
  511R N901 WO Work Order Number Number assigned by a maintenance facility identifying the repair requirement 1. Use to identify a maintenance work order number. 2. DLMS enhancement; see introductory DLMS note 3a. 3. For DoD SLOA/Accounting Classification compliance the Work Order Number may be repeated at FA201 Qualifier ‘WO’. Refer to ADC 1043. 1/30
  511R 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 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
  511R N901 EVI Event Identification Use to delineate the type of action the storage activity is to take on this request 1. Used to further delineate the type of action applicable to the storage activity 2. Use for DLA Disposition Services Requisition with associated freeze action pending approval. The only applicable values for this transaction are code F=Freeze and Z=Unfreeze. Refer to ADC 1156A 3. Approved for use in X12 version 4030. This is an authorized DLMS enhancement. 1/30
  511R N901 FCN Assigned Contract Number Use to identify the sales contract number For DLA Disposition Services public sales, use to identify the sales contract number. (Field length equal to 10 characters.) Refer to ADC 1234. 10/10
  511R 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 with a previously submitted requisition alert. 3. Authorized DLMS enhancement under DLA industrial activity support agreement. Refer to ADC 381. 15/15
  511R N902
  511R N903
  511R N907
  511R 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 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. 2. DLMS enhancement; see introductory DLMS note 3a. 1/30
  511R 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 (N901 Code 98) 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
  511R 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
  511R 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. For DLA Disposition Services Reutilization/Transfer/Donation (RTD) Web Application, 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 (N907 Code W8), then enter the DTID in the N907-04. DLMS enhancement, see ADC 466. 3. Use on 511R DLA-Directed MROs (DIC C0_) applicable to DLA Disposition Services inventory to identify the DTID number when provided as a secondary reference number. The DTID number is used by DLA Disposition Services as a unique number to identify property that was turned into a DLA Disposition Service Field Office. The value of the DTID may be the original turn-in document number or may be a unique control number (UCN) assigned by the Field Office during receipt processing when the original DTID number is not adequate to uniquely identify the property. Must use with Disposition Sub-Category Code SV. May be used with Disposition Category Code DS. Refer to ADC 457.
  511R 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 is limited to when the 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. 2. Also authorized on an Intra-Army basis with BR02 transaction type code A0, BR06 action code “J” and N901 code TN for identification of the post-post partial issue of materiel by Army Single Stock Fund activities. 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 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
  511R N907-02
  511R N907-03 60 Account Suffix Code Use to identify the Disposal turn-in document (DTID) suffix code that equates to the suffix used on the original property turn-in and retained by DLA Disposition Services for accountability and tracking 1. Use in conjunction with the DTID Number (N907 Code W1) to identify the DTID Number Suffix Code, when applicable. 2. When the DTID Number is provided in N907-02, enter the correlating DTID Suffix using this location. DLMS enhancement, see ADC 466. 1/1
  511R 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. For DLA Disposition Services Reutilization/Transfer/Donation (RTD) Web Application, 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.
  511R N907-04
  511R N907-05 60 Account Suffix Code Use to identify the Disposal turn-in document (DTID) suffix code that equates to the suffix used on the original property turn-in and retained by DLA Disposition Services for accountability and tracking 1. Use in conjunction with the DTID Number (N907 Code W1) to identify the DTID Number Suffix Code, when applicable. 2. When the DTID Number is provided in N907-04, enter the correlating DTID Suffix using this location. DLMS enhancement, see ADC 466. 1/1
  511R N907-06
  511R PO102
  511R PO103
  511R PO104
  511R PO105 AA Bill Used on the first iteration of the PO1 segment on DoD FEDMALL/part-numbered catalog orders to indicate the unit price that the requisitioner is to be billed.
  511R PO105 AV Average Acquisition Cost Materiel managers use in LROs to provide the average acquisition cost per unit of materiel to be used by the reporting activity to bill the materiel manager for any quantity filled.
  511R PO105 CT Contract Used on the second iteration of the PO1 segment on DoD FEDMALL/part-numbered catalog orders to indicate the contract unit price that the vendor/supplier of the part can invoice.
  511R PO105 ES Estimated Use to indicate an estimated unit price for the nonstandard materiel.
  511R PO105 NC No Charge Use to indicate nonreimbursable (free issue) materiel. DLMS migration enhancement. This usage is comparable to Signal Code D or M.
  511R 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
  511R PO106 A4 Subsistence Identification Number Use to identify a brand name resale subsistence item 15/15
  511R 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
  511R PO106 FS National Stock Number A number assigned under the federal cataloging program to each Approved Code United States Federal Item Identification 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. Authorized DLMS enhancement under DLA industrial activity support agreement. 13/13
  511R 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).
  511R 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. 3. During the legacy MILSTRIP/DLMS transition, this field will be used to perpetuate/populate the MILS stock number field. During this time, field size is restricted to 15 positions; field size is expanded to 32 positions for DoD FEDMALL/part-numbered catalog orders. See introductory DLMS note 3d. 1/48
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