Supplies and services acquired under Government contracts must conform to the contract's quality and quantity requirements.
The latest form for Federal Acquisition Regulation Part 46 Requirements - FAR Sections Affected: 52.246-2 thru 52.426-8, 52.246-12, 52.246-15, and 52.246-26 expires 2022-10-31 and can be found here.
Federal Enterprise Architecture: Supply Chain Management - Goods Acquisition