A useful supply inquiry gives the reviewer enough information to identify the product, understand the delivery requirement, and distinguish a firm requirement from an open question. We recommend organizing the request around five items.

Identify the item

Include the manufacturer and part number when known, a plain-language description, and any drawings or specifications supplied with the requirement. Identify the solicitation and line item so the quotation can be checked against the same source documents.

State the quantity and unit

Make the unit of issue explicit. A request for ten each is different from ten packs. Note packaging quantities and whether partial quantities would be considered. Keep these details alongside the item description rather than in a separate email thread.

Separate the required date from availability

Provide the required delivery date and destination. Ask the prospective source to distinguish stock availability, manufacturing lead time, and shipment timing in its response. Treat unconfirmed timing as an open issue, rather than a delivery commitment.

Document proposed alternatives

First check whether the solicitation permits alternatives. Where FAR 52.211-6 applies, an offered equal product must meet the stated salient characteristics, be clearly identified, and be supported by descriptive information. Planned modifications must also be identified. A similar product name alone does not establish equivalence.[^1]

Make the quotation reviewable

Our recommended review record places the requested item beside the offered item, quantity, price, quoted lead time, validity period, and stated exceptions. Ask for any required product documentation before treating the response as complete. Keep unresolved questions visible until the buyer and source have addressed them.

The solicitation and resulting order define the actual obligations. This checklist is a practical way to organize an inquiry and compare responses; it does not replace those documents.