This is a Pre-Solicitation Notice. This notice does NOT constitute a request for proposal, request for quote or invitation for bid. Estimated issue date for the solicitation is on or after 7 August 2025, with the solicitation closing approximately 30 days thereafter. It will be issued electronically on the SAM.gov website at https://sam.gov under the reference number FA2263-25-R-0003. AFMETCAL at Heath OH intends to issue a solicitation at some future date for the purchase of Multifunction Calibrators. This will be solicited as a full and open solicitation. The Government envisions a Firm Fixed Price (FFP) type Indefinite Delivery Indefinite Quantity (IDIQ) for a single award contract with a best estimated quantity of 172 units. The requirement is for a Multifunction Calibrator in accordance with the purchase description.The pre-solicitation number shall be referenced on all correspondence submitted. The Government does not intend to award a contract on the basis of this notice or otherwise pay for any information submitted as a result of this notice. Interested parties should submit questions to Allen Kurella, AFMETCAL, 813 Irving-Wick Dr. W., Horton Building, Heath OH 43056-1199. Electronic submissions to allen.kurella@us.af.mil are permissible.