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FAR and DFARS › DFARS Part 225: Foreign Acquisition › Subpart 225.70

DFARS 225.7018-1 Definitions.

The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.

In plain English

This DFARS section defines terms used in the rules on covered materials. It explains what counts as covered material, electronic device, and tungsten heavy alloy. Contractors need these definitions to know whether their products fall under the related restrictions.

Applies to: Contractors and solicitations involving covered materials or electronic devices under DFARS

Key terms: Covered material · Electronic device · Tungsten heavy alloy · Samarium-cobalt magnets · Neodymium-iron-boron magnets

Written by AI from this section's text. A guide, not legal advice: the text below rules.

The text

As used in this section—

Covered material means—

(1) Samarium-cobalt magnets;

(2) Neodymium-iron-boron magnets;

(3) Tantalum metals and alloys;

(4) Tungsten metal powder; and

(5) Tungsten heavy alloy or any finished or semi-finished component containing tungsten heavy alloy.

Electronic device means an item that operates by controlling the flow of electrons or other electrically charged particles in circuits, using interconnections such as resistors, inductors, capacitors, diodes, switches, transistors, or integrated circuits.

Tungsten heavy alloy means a tungsten base pseudo alloy that—

(1) Meets the specifications of ASTM B777 or SAE-AMS-T-21014 for a particular class of tungsten heavy alloy; or

(2) Contains at least 90 percent tungsten in a matrix of other metals (such as nickel-iron or nickel-copper) and has density of at least 16.5 g/cm3).

← 225.7018-0 Scope. · 225.7018-2 Restriction. →

Rule changes for DFARS Part 225

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.

DFARS 225.7018-1 Definitions · SpendQuery