A 13-digit standardised identification number assigned to items of supply used by NATO member nations. Format: XXXX-XX-XXX-XXXX (FSC-CC-NIIN). Enables interoperability and cross-border procurement across allied supply chains.

The last 9 digits of an NSN, uniquely identifying an item within the NATO cataloguing system. The first two digits indicate the country of origin (e.g., 00/01 = USA, 99 = Canada).

A 4-digit code forming the first segment of an NSN, grouping items by commodity type (e.g., 1005 = Guns through 30mm, 6625 = Electrical/Electronic Test Equipment).

The first two digits of an FSC, representing a broad commodity grouping within the NATO supply classification system.

A NATO agreement that establishes processes, procedures, terms, and conditions for common military or technical procedures or equipment between member nations. Governs interoperability of materiel and logistics.

The process by which items of supply are identified, classified, and assigned NSNs under the NATO Codification System (NCS), enabling allied nations to share supply data and source materiel from common catalogues.

The international system for identifying, classifying, and numbering items of supply used by NATO and partner nations. Administered by the NATO Maintenance and Supply Agency (NAMSA/NSPA).

The primary NATO logistics and procurement agency, providing acquisition, supply chain, and support services to member nations. Formerly NAMSA (NATO Maintenance and Supply Agency).

A modular component designed to be replaced at the operational level (flight line or field unit) without depot-level maintenance. Critical to minimising aircraft and equipment downtime.

A sub-component of an LRU that requires removal and repair at a maintenance shop or depot rather than at the operational level.

Unmodified commercial products available for purchase by the general public and used in military applications without significant modification. Contrasted with MOTS (Military Off-The-Shelf) and GOTS (Government Off-The-Shelf).

Equipment, materiel, or property provided by a government to a contractor for use in the performance of a contract. Title remains with the government.

A comprehensive list of raw materials, components, sub-assemblies, and quantities required to manufacture or maintain a product or system. Essential for spare parts procurement and logistics planning.

A multidisciplinary team responsible for delivering a defence capability or procurement programme, typically comprising representatives from the customer, prime contractor, and key sub-contractors.

US regulations (22 CFR Parts 120–130) administered by the State Department's Directorate of Defense Trade Controls (DDTC) governing the export, re-export, and transfer of defence articles and services listed on the United States Munitions List (USML). Non-compliance carries criminal penalties.

US regulations (15 CFR Parts 730–774) administered by the Bureau of Industry and Security (BIS) governing the export of dual-use items, software, and technology listed on the Commerce Control List (CCL). Applies to items with both commercial and military applications.

The list of defence articles, services, and related technical data subject to ITAR export controls, organised into 21 categories (e.g., Category I: Firearms, Category VIII: Aircraft and Related Articles).

The list of dual-use items subject to EAR export controls, identified by Export Control Classification Numbers (ECCNs). Items not on the USML or CCL are designated EAR99.

An alphanumeric code (e.g., 9A610) used to classify items on the Commerce Control List for EAR purposes. The first digit indicates the product category; the letter indicates the product group.

A document certifying the identity of the ultimate end-user of exported defence materiel and the intended end-use. Required by most export licensing regimes to prevent diversion to unauthorised parties.

The standard US State Department licence application form for permanent export of ITAR-controlled defence articles. Requires identification of end-user, end-use, and all parties to the transaction.

An ITAR-required agreement authorising the provision of defence services or technical data to a foreign person. Must be approved by DDTC prior to execution.

An ITAR-controlled agreement authorising a foreign party to manufacture defence articles using US-origin technical data or know-how. Requires DDTC approval.

The process of checking individuals, entities, and vessels against government-maintained denied party lists (e.g., US Entity List, OFAC SDN List, UN Security Council Sanctions List) prior to entering into a transaction.

A US Treasury Department agency that administers and enforces economic and trade sanctions based on US foreign policy and national security goals. Maintains the Specially Designated Nationals (SDN) list.

Canadian federal legislation governing the export and import of controlled goods and technology. Administered by Global Affairs Canada. Requires export permits for items on the Export Control List (ECL).

The Canadian list of goods and technology requiring export permits under the Export and Import Permits Act. Aligned with Wassenaar Arrangement, MTCR, and other multilateral control regimes.

A Canadian government programme administered by Public Services and Procurement Canada (PSPC) requiring registration of individuals and organisations that examine, possess, or transfer controlled goods within Canada.

Collective term for legal frameworks and corporate policies prohibiting bribery of public officials and corrupt business practices. Relevant instruments include the Canadian Corruption of Foreign Public Officials Act (CFPOA) and UK Bribery Act 2010.

A multilateral export control regime with 42 participating states governing conventional arms and dual-use goods and technologies. Establishes control lists (Munitions List and Dual-Use List) and promotes transparency and responsibility in transfers to prevent destabilising accumulations.

A UK HM Treasury body responsible for implementing and enforcing financial sanctions in the United Kingdom. Maintains the UK Financial Sanctions Register (equivalent to OFAC's SDN list). Compliance required for all transactions with UK nexus.

A procedure by which an exporter or broker proactively discloses a potential violation of export control or sanctions regulations to the relevant authority (e.g., DDTC for ITAR, BIS for EAR, OFAC for sanctions). VSD is a significant mitigating factor in enforcement proceedings and is considered best practice in export compliance programmes.

US federal law prohibiting US persons and entities from bribing foreign government officials to obtain or retain business. Enforced jointly by the DOJ and SEC. Applies to US companies and individuals, and to foreign companies listed on US exchanges.

Canadian federal legislation prohibiting the bribery of foreign public officials in the course of business. Administered by the RCMP. Applies to Canadian citizens, permanent residents, and companies incorporated in Canada regardless of where the offence occurs.

The US Bureau of Industry and Security (BIS) online system for submitting and tracking export licence applications under the Export Administration Regulations (EAR). Used for dual-use items on the Commerce Control List (CCL).

European Union regulation governing the export, brokering, transit, and transmission of dual-use items. Establishes a common EU control list aligned with Wassenaar, MTCR, NSG, and AG. Includes a catch-all clause for unlisted items with WMD or military end-use concerns.

A formal procurement document issued by a government or organisation inviting suppliers to submit proposals for the provision of goods or services. Typically includes technical requirements, evaluation criteria, and contractual terms.

A procurement document requesting price and delivery information from suppliers for specified goods or services. Less formal than an RFP; typically used for standardised or well-defined items.

A preliminary market research document issued to gather information about supplier capabilities, available solutions, and market conditions prior to issuing a formal RFP or RFQ.

A formal document defining the specific work activities, deliverables, and timeline that a contractor must perform under a contract. Establishes the scope and boundaries of the engagement.

A document defining the purpose, scope, objectives, and deliverables of a project, committee, or engagement. Used interchangeably with SOW in some jurisdictions.

A document expressing a party's intention to enter into a formal agreement. Not legally binding in most jurisdictions but signals commitment and may trigger preliminary obligations.

A formal agreement between two or more parties expressing a convergence of intent. May or may not be legally binding depending on its terms and applicable law. Commonly used in government-to-government defence cooperation.

A US government programme (22 USC § 2761) enabling foreign governments and international organisations to purchase US defence articles, services, and training through the US Department of Defense as an intermediary.

The sale of US defence articles and services directly from a US manufacturer or exporter to a foreign government or entity, as opposed to through the FMS programme. Requires ITAR export licences.

The total cost of ownership of a defence system or asset over its entire service life, including acquisition, operation, maintenance, support, and disposal costs.

The point at which a military unit, system, or capability has achieved the minimum level of readiness to perform its assigned mission. Precedes Full Operating Capability (FOC).

The point at which a military unit, system, or capability has achieved the complete level of readiness and can perform its full range of assigned missions.

The exercise of authority and direction by a commander over assigned forces in the accomplishment of a mission. Encompasses the systems, processes, and communications enabling commanders to direct operations.

An integrated suite of military capabilities enabling commanders to gather, process, and act on information. Central to modern networked warfare and joint operations.

Coordinated acquisition, processing, and provision of timely, accurate, and relevant information and intelligence to support commanders and decision-makers.

Military action involving the use of electromagnetic energy to control the electromagnetic spectrum or to attack the enemy. Comprises electronic attack (EA), electronic protection (EP), and electronic warfare support (ES).

A coordinated network of sensors, command and control nodes, and weapon systems designed to detect, track, and engage airborne threats across a defended area.

A guided missile launched from the ground or a naval vessel designed to destroy airborne targets including aircraft, helicopters, and ballistic missiles.

An airborne radar system designed to detect aircraft, ships, and vehicles at long range and provide early warning and battle management capability. Platforms include E-3 Sentry (AWACS) and E-2 Hawkeye.

Air action by fixed- or rotary-wing aircraft against hostile targets that are in close proximity to friendly forces, requiring detailed integration of each air mission with the fire and movement of those forces.

A qualified service member who directs the action of combat aircraft engaged in CAS and other offensive air operations from a forward position. Requires specific qualification and currency.

Directives issued by competent military authority that delineate the circumstances and limitations under which forces will initiate and/or continue combat engagement with other forces encountered.

A directive issued by a commander to subordinate commanders for the purpose of effecting the coordinated execution of an operation. Standard five-paragraph format: Situation, Mission, Execution, Sustainment, Command and Signal.

A periodic report providing a summary of the current operational situation, including friendly and enemy dispositions, significant events, and anticipated developments.

A report providing the current status of logistics resources including ammunition, fuel, water, rations, and equipment serviceability. Used to inform sustainment planning.

The totality of activities required to ensure the airworthiness and operational readiness of aircraft and aviation systems. Encompasses scheduled maintenance, unscheduled repair, and periodic overhaul to original specifications.

The manufacturer-specified interval (in flight hours or calendar time) between major overhauls of an engine or component. Exceeding TBO without authorised extension constitutes an airworthiness violation.

An integrated system of computers, sensors, and actuators that automatically controls an aircraft's flight path, attitude, and speed. Includes autopilot, autothrottle, and flight director functions.

Electronic systems used in aircraft, including communications, navigation, flight management, radar, and weapons systems. Derived from 'aviation' and 'electronics'.

A radar-based identification system enabling military forces to identify aircraft, vehicles, and ships as friendly or hostile. Operates on encrypted transponder codes (Modes 1–5 in NATO systems).

An electronic warfare system that detects and identifies radar emissions directed at an aircraft, alerting the crew to potential threats and enabling defensive countermeasures.

Sensor systems using visible light (EO) or infrared radiation (IR) for surveillance, targeting, and navigation. Includes FLIR (Forward Looking Infrared) systems used for night operations and precision targeting.

A thermal imaging system mounted on aircraft or vehicles that detects infrared radiation emitted by objects, enabling navigation and targeting in low-visibility conditions.

A transparent display presenting flight data, navigation information, and weapons aiming symbology in the pilot's forward field of view, reducing the need to look down at cockpit instruments.

A cockpit design philosophy placing critical controls on the throttle and control stick so the pilot can operate primary systems without removing hands from the flight controls.

US government information that requires safeguarding or dissemination controls pursuant to law, regulation, or government-wide policy, but is not classified. Governed by 32 CFR Part 2002.

A handling caveat applied to unclassified information that may be exempt from public disclosure under the Freedom of Information Act (FOIA). Being phased out in favour of CUI designations in US government usage.

A dissemination control marking indicating that classified or controlled information may not be released to foreign nationals or foreign governments without specific authorisation.

A dissemination control marking indicating that information may be released to specified allied nations (e.g., REL TO USA, GBR, CAN, AUS, NZL for Five Eyes partners).

An intelligence alliance comprising Australia, Canada, New Zealand, the United Kingdom, and the United States. Members share signals intelligence (SIGINT) and other intelligence under the UKUSA Agreement.

A NATO security classification level for information whose unauthorised disclosure would be damaging to NATO interests. NATO classification levels are: NATO UNCLASSIFIED, NATO RESTRICTED, NATO CONFIDENTIAL, NATO SECRET, COSMIC TOP SECRET.

A process that identifies critical information, analyses threats and vulnerabilities, assesses risk, and applies countermeasures to deny adversaries information that could be used against friendly operations.

Measures taken to deny unauthorised persons information derived from telecommunications and to ensure the authenticity of such communications. Encompasses cryptographic security, transmission security, and physical security of communications equipment.