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
  856N LIN02 A4 Subsistence Identification Number Use to identify a brand name resale subsistence item 15/15
  856N LIN02 F4 Series Identifier Use to identify the manufacturer's series number of the applicable end item Use to identify the manufacturer's series number of the end item. 1/48
  856N LIN02 FB Form Number A unique stock number associated with a specific Approved Code form Use to identify the form stock number. 1/30
  856N LIN02 FS National Stock Number A number assigned under the federal cataloging program to each Approved Code United States Federal Item Identification 13/13
  856N LIN02 FT Federal Supply Classification A code which identifies the supply classification of an item of supply identified under the federal cataloging program, an item of production and/or a homogeneous area of commodities in respect to their physical or performance characteristics Use to identify nonstandard materiel when a part number is not available and materiel requisitioned was identified by description (e.g., non-NSN lumber products). 4/4
  856N LIN02 MG Manufacturer's Part Number A number assigned by a manufacturer to an item of production Use to identify nonstandard materiel. 1/48
  856N LIN02 MN Model Number Use as a second level identifier assigned by a manufacturer which identifies one of several types of a basic equipment Use to identify the manufacturer's model number of the end item. 15/15
  856N LIN02 SN Serial Number A value assigned for identification of an item Use to identify the manufacturer's serial number of the end item. 1/50
  856N LIN02 YP Publication Number Reference number assigned to a publication or catalog Use to identify the publication stock number. 1/48
  856N LIN03
  856N LIN04 CN Commodity Name Name or description of material item Use with LIN02 code FT to identify the materiel name or description. 1/48
  856N LIN04 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 Use with LIN02 code MG to uniquely identify a manufacturer's part number. 5/5
  856N LIN05
  856N SN102
  856N SN103
  856N MEA01 NX Net Explosive Weight For explosive shipments, use to identify the Net Explosive Weight in the MEA03 and MEA04-01 Code LB.
  856N MEA01 PD Physical Dimensions For over-dimensional shipments, use to identify the physical dimensions (height, length, and width) of the shipment in the MEA02, MEA03, and MEA04-01 Code IN.
  856N MEA02 A Consolidated Weight Use to identify the shipment weight in pounds Use with code LB in MEA04-01, to identify the shipment weight in pounds. 1/20
  856N MEA02 HT Height Use to indicate the maximum outside height of the unit pack Use to indicate Unit Pack Height. 1/20
  856N MEA02 LN Length Use to indicate the maximum outside length of the unit pack Use to indicate Unit Pack Length. 1/20
  856N MEA02 WD Width Use to indicate the maximum outside width of the unit pack Use to indicate Unit Pack Width. 1/20
  856N MEA02 UCB Cube Use to identify the maximum cube of the unit pack Use with code CF in MEA04-01 to identify the shipment cubic size (volume) expressed as cubic feet. 1/20
  856N MEA03
  856N MEA04
  856N MEA04-01 CF Cubic Feet 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 with code UCB in MEA02 to indicate that the shipment cube is expressed as cubic feet. 1/20
  856N MEA04-01 IN Inch Use with MEA01 Code PD and MEA02 Codes HT, LN, and WD.
  856N MEA04-01 LB Pound 1. Use with code A in MEA02 to indicate that the shipment weight is expressed as pounds. 2. Use with code NX in MEA01 to indicate that the shipment net explosive weight is expressed in pounds.
  856N TD102
  856N TD105
  856N TD504
  856N REF01 BT Batch Number A quantity of material all of which was manufactured under identical conditions and assigned an identifying batch number Use as needed to identify the manufacturer's batch number or other number identifying the production run. 1/30
  856N REF01 K1 Foreign Military Sales Notice Number Use to identify the number assigned to control the shipment between the shipper and consignee Must use only in 2/HL/0100 shipment loops to identify the NOA Notice Number, which reflects the number of times the NOA has been sent to the Freight Forwarder/Country Representative. Second and subsequent transmissions may be interpreted as follow-ups. Authorized DLMS enhancement; see DLMS Introductory Note 4e. Refer to ADC 1098. 1/30
  856N REF01 LO Load Planning Number Use to identify the number of transactions included in the shipment Use in 2/HL/0100 shipment loops to identify the number of transactions included in the shipment. 1/30
  856N REF01 LT Lot Number
  856N REF01 TG Transportation Control Number (TCN) A 17-position alphanumeric assigned to control and manage every shipment unit throughout the transportation pipeline Must use only in 2/HL/0100 shipment loops to identify the number assigned to control the shipment between the shipper and consignee. 17/17
  856N REF01 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 Must use in every 2/HL/0100 line item loop to identify the customer assigned transaction number for the requisition associated with the shipment unit. 14/14
  856N REF02
  856N REF04
  856N REF04-01 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 Use with REF01 code TN to identify the transaction number suffix. 1/1
  856N REF04-02
  856N LH101
  856N LH102
  856N LH103
  856N LH110
  856N LH201
  856N LH301
  856N LH302 C Canadian Shipping Name
  856N LH302 D Domestic (United States) Shipping Name
  856N LH302 I International Shipping Name
  856N LHR01 1I Department of Defense Identification Code (DoDIC) Use to identify specific types of ammunition and explosives, indicating both the item and its packaging Use to identify the DODIC of the ammunition or explosive. 4/4
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