| AA | Product version number Number assigned by manufacturer or seller to identify the release of a product. | 
| AB | Assembly | 
| AC | HIBC (Health Industry Bar Code) Article identifier used within health sector to indicate data used conforms to HIBC. | 
| AD | Cold roll number Number assigned to a cold roll. | 
| AE | Hot roll number Number assigned to a hot roll. | 
| AF | Slab number Number assigned to a slab, which is produced in a particular production step. | 
| AG | Software revision number A number assigned to indicate a revision of software. | 
| AH | UPC (Universal Product Code) Consumer package code (1-5-5) An 11-digit code that uniquely identifies consumer packaging of a product; does not have a check digit. | 
| AI | UPC (Universal Product Code) Consumer package code (1-5-5-1) A 12-digit code that uniquely identifies the consumer packaging of a product, including a check digit. | 
| AJ | Sample number Number assigned to a sample. | 
| AK | Pack number Number assigned to a pack containing a stack of items put together (e.g. cold roll sheets (steel product)). | 
| AL | UPC (Universal Product Code) Shipping container code (1-2-5- 5) A 13-digit code that uniquely identifies the manufacturer's shipping unit, including the packaging indicator. | 
| AM | UPC (Universal Product Code)/EAN (European article number) Shipping container code (1-2-5-5-1) A 14-digit code that uniquely identifies the manufacturer's shipping unit, including the packaging indicator and the check digit. | 
| AN | UPC (Universal Product Code) suffix A suffix used in conjunction with a higher level UPC (Universal product code) to define packing variations for a product. | 
| AO | State label code A code which specifies the codification of the state's labelling requirements. | 
| AP | Heat number Number assigned to the heat (also known as the iron charge) for the production of steel products. | 
| AQ | Coupon number A number identifying a coupon. | 
| AR | Resource number A number to identify a resource. | 
| AS | Work task number A number to identify a work task. | 
| AT | Price look up number Identification number on a product allowing a quick electronic retrieval of price information for that product. | 
| AU | NSN (North Atlantic Treaty Organization Stock Number) Number assigned under the NATO (North Atlantic Treaty Organization) codification system to provide the identification of an approved item of supply. | 
| AV | Refined product code A code specifying the product refinement designation. | 
| AW | Exhibit A code indicating that the product is identified by an exhibit number. | 
| AX | End item A number specifying an end item. | 
| AY | Federal supply classification A code to specify a product's Federal supply classification. | 
| AZ | Engineering data list A code specifying the product's engineering data list. | 
| BA | Milestone event number A number to identify a milestone event. | 
| BB | Lot number A number indicating the lot number of a product. | 
| BC | National drug code 4-4-2 format A code identifying the product in national drug format 4- 4-2. | 
| BD | National drug code 5-3-2 format A code identifying the product in national drug format 5- 3-2. | 
| BE | National drug code 5-4-1 format A code identifying the product in national drug format 5- 4-1. | 
| BF | National drug code 5-4-2 format A code identifying the product in national drug format 5- 4-2. | 
| BG | National drug code A code specifying the national drug classification. | 
| BH | Part number A number indicating the part. | 
| BI | Local Stock Number (LSN) A local number assigned to an item of stock. | 
| BJ | Next higher assembly number A number specifying the next higher assembly or component into which the product is being incorporated. | 
| BK | Data category A code specifying a category of data. | 
| BL | Control number To specify the control number. | 
| BM | Special material identification code A number to identify the special material code. | 
| BN | Locally assigned control number A number assigned locally for control purposes. | 
| BO | Buyer's colour Colour assigned by buyer. | 
| BP | Buyer's part number Reference number assigned by the buyer to identify an article. | 
| BQ | Variable measure product code A code assigned to identify a variable measure item. | 
| CC | Industry commodity code The codes given to certain commodities by an industry. | 
| CG | Commodity grouping Code for a group of articles with common characteristics (e.g. used for statistical purposes). | 
| CL | Colour number Code for the colour of an article. | 
| CR | Contract number Reference number identifying a contract. | 
| CV | Customs article number Code defined by Customs authorities to an article or a group of articles for Customs purposes. | 
| DR | Drawing revision number Reference number indicating that a change or revision has been applied to a drawing. | 
| DW | Drawing Reference number identifying a drawing of an article. | 
| EC | Engineering change level Reference number indicating that a change or revision has been applied to an article's specification. | 
| EF | Material code Code defining the material's type, surface, geometric form plus various classifying characteristics. | 
| EN | International Article Numbering Association (EAN) Number assigned to a manufacturer's product according to the International Article Numbering Association. | 
| GB | Buyer's internal product group code Product group code used within a buyer's internal systems. | 
| GN | National product group code National product group code. Administered by a national agency. | 
| GS | General specification number | 
| HS | Harmonised system | 
| IB | ISBN (International Standard Book Number) | 
| IN | Buyer's item number | 
| IS | ISSN (International Standard Serial Number) | 
| IT | Buyer's style number Number given by the buyer to a specific style or form of an article, especially used for garments. | 
| IZ | Buyer's size code Code given by the buyer to designate the size of an article in textile and shoe industry. | 
| MA | Machine number | 
| MF | Manufacturer's (producer's) article number The number given to an article by its manufacturer. | 
| MN | Model number Reference number assigned by the manufacturer to differentiate variations in similar products in a class or group. | 
| MP | Product/service identification number Reference number identifying a product or service. | 
| NB | Batch number | 
| ON | Customer order number Reference number of a customer's order. | 
| PD | Part number description Reference number identifying a description associated with a number ultimately used to identify an article. | 
| PL | Purchaser's order line number Reference number identifying a line entry in a customer's order for goods or services. | 
| PO | Purchase order number Reference number identifying a customer's order. | 
| PV | Promotional variant number | 
| QS | Buyer's qualifier for size | 
| RC | Returnable container number Reference number identifying a returnable container. | 
| RN | Release number Reference number identifying a release from a buyer's purchase order. | 
| RU | Run number | 
| RY | Record keeping of model year | 
| SA | Supplier's article number Number assigned to an article by the supplier of that article. | 
| SG | Standard group of products (mixed assortment) | 
| SK | SKU (Stock keeping unit) Reference number of a stock keeping unit. | 
| SN | Serial number Identification number of an item which distinguishes this specific item out of a number of identical items. | 
| SRS | RSK number Plumbing and heating. | 
| SS | Supplier's supplier article number Article number referring to a sales catalogue of supplier's supplier. | 
| ST | Style number Number given to a specific style or form of an article, especially used for garments. | 
| TG | Transport group number Additional number to form article groups for packing and/or transportation purposes. | 
| UA | Ultimate customer's article number Number assigned by ultimate customer to identify relevant article. | 
| UP | UPC (Universal product code) Number assigned to a manufacturer's product by the Product Code Council. | 
| VN | Vendor item number Reference number assigned by a vendor/seller identifying a product/service/article. | 
| VP | Vendor's (seller's) part number Reference number assigned by a vendor/seller identifying an article. | 
| VS | Vendor's supplemental item number | 
| VX | Vendor specification number | 
| ZZZ | Mutually defined |