48 CFR · Federal Acquisition Regulation and Defense supplement

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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.

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4 sections with “tungsten heavy alloy”

  • DFARS 252.225-7052 Restriction on the Acquisition of Certain Magnets, Tantalum, and Tungsten.
    …e the following clause: Restriction on the Acquisition of Certain Magnets, Tantalum, and Tungsten (May 2024) (a) Definitions. As used in this clause— Assembly means an item forming a portion of a system or subsystem that— (1) Can be pro…
  • DFARS 225.7018-1 Definitions.
    …-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 me…
  • DFARS 225.7018-2 Restriction.
    …rough production of metals of any kind and alloys, except as provided at 225.7018-3. (d) Tungsten metal powder and tungsten heavy alloy. (1) Effective through December 31, 2026, for production of tungsten metal powder and tungsten heavy al…
  • DFARS 225.7018-3 Exceptions.
    …r than— (i) A commercially available off-the-shelf item that is— (A) 50 percent or more tungsten by weight effective through December 31, 2026; or (B) 50 percent or more covered material by weight effective January 1, 2027; (ii) Effecti…

FAR (chapter 1)

DFARS (chapter 2, Defense)

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Rule changes in progress: FAR, DFARS. Terms: glossary.